A section of a main road route into London had to close today as rush-hour travellers mixed with Olympic traffic on the first working day during the Games.
A serious accident meant the closure of the London-bound section of the M4 between junction 5 at Langley in Berkshire and junction 4b near Heathrow airport in west London.
Long queues built up on the motorway which goes into an Olympic traffic-only Games lane nearer London.
There were also jams for drivers at some of the Games lanes sites in London, including the A40 in west London and the Canning Town Flyover in east London.
But Tube and main line rail services operated well during the morning peak period.
Transport for London (TfL) advised travellers that London Bridge station would be very busy today with spectators travelling to the equestrian cross country event at Greenwich Park in south east London.
A part of London Bridge is being closed to departing passengers from 6pm to 10pm tonight to minimise congestion.
Those affected are passengers travelling on the Kent-bound services run by the First Capital Connect and Southeastern train companies.
TfL said Olympic events meant the Docklands Light Railway would be particularly busy today as would Canary Wharf and Bank Tube stations.
PHOTOS: OLYMPICS DAY 2 (7/29/12)
Tarlan Karimov & Musa Mogushkov(01 of116)
Tarlan Karimov of Azerbaijan (in blue) competes against Musa Mogushkov of Russia during the men's -66kg judo competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Paul Sancya) (credit:AP)
Ashleigh Brennan(02 of116)
Australian gymnast Ashleigh Brennan performs on the floor during the Artistic Gymnastic women's qualifications at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Julie Jacobson) (credit:AP)
Ronny Turiaf (03 of116)
France's Ronny Turiaf goes up for a dunk during the first half of a preliminary men's basketball game against the USA at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Eric Gay) (credit:AP)
Giulia Steingruber (04 of116)
Swiss gymnast Giulia Steingruber performs on the balance beam during the Artistic Gymnastics women's qualification at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Gregory Bull) (credit:AP)
Elsa Baquerizo(05 of116)
Spain's Elsa Baquerizo, left, reacts with teammate Liliana Fernandez after they beat the Netherlands during a beach volleyball match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Dave Martin) (credit:AP)
David Florence(06 of116)
David Florence of Britain competes in the heats of the C-1 men's canoe slalom at Lee Valley Whitewater Center, at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Kirsty Wigglesworth) (credit:AP)
Netherlands Field Hockey (07 of116)
The Netherlands Field Hockey team congratulates each other shortly after defeating Belgium 3-0 in the women's hockey preliminary match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Bullit Marquez) (credit:AP)
(08 of116)
A Mexico fan cheers prior to the men's group B soccer match between Mexico and Gabon at the London 2012 Summer Olympics, in Coventry, England, Sunday, July 29, 2012. (AP Photo/Hussein Malla) (credit:AP)
Liliana Fernandez(09 of116)
Spain's Liliana Fernandez sets the ball during a beach volleyball match against the Netherlands at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Dave Martin) (credit:AP)
Georgia Bonora(10 of116)
Australian gymnast Georgia Bonora performs on the uneven bars during the artistic gymnastics women's qualifications at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Matt Dunham) (credit:AP)
Mary Jenkins(11 of116)
Mary Jenkins of Strabane, Northern Ireland, waits out a rain delay at the All England Lawn Tennis Club at Wimbledon, in London, at the 2012 Summer Olympics, Sunday, July 29, 2012. (AP Photo/Mark Humphrey) (credit:AP)
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The peloton passes by The Mall near Buckingham Palace during the women's road cycling race at the 2012 Summer Olympics on Sunday, July 29, 2012, in London. (AP Photo/Charlie Riedel, Pool) (credit:AP)
Canada's women's rowing team(13 of116)
Canada's, from left, Lesley Thompson-Willie, Andreanne Morin, Darcy Marquardt, Ashley Brzozowicz, Natalie Mastracci, Lauren Wilkinson, Krista Guloien, Rachelle Viinberg, and Janine Hanson stroke during a women's rowing eight heat in Eton Dorney, near Windsor, England, at the 2012 Summer Olympics, Sunday, July 29, 2012. Canada won the heat. (AP Photo/Natacha Pisarenko) (credit:AP)
Julia Goerges(14 of116)
Julia Goerges of Germany reacts after winning the first set against Agnieszka Radwanska of Poland during their match at the All England Lawn Tennis Club in Wimbledon, London at the 2012 Summer Olympics, Sunday, July 29, 2012. (AP Photo/Elise Amendola) (credit:AP)
Weili Yu(15 of116)
Hong Kong's Weili Yu lifts during the women's 53-kg, group B, weightlifting competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London.(AP Photo/Mike Groll) (credit:AP)
Great Britain's cycling team(16 of116)
Great Britain's cycling team stand together before the start of the Women's Road Cycling race at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Christophe Ena) (credit:AP)
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Ravil Manafov of Kazakhstan, left, reaches for the ball as Guillermo Molina Rios of Spain defends during their mens Water Polo preliminary round match at the 2012 Summer Olympics, Saturday, July 28, 2012, in London.(AP Photo/Alastair Grant) (credit:AP)
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Rosalba Forciniti of Italy celebrates her win over Kyung-Ok Kim of South Korea during the women's -52kg judo competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Paul Sancya) (credit:AP)
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United States' Missy Franklin starts in a women's 100-meter backstroke swimming heat at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Mark J. Terrill) (credit:AP)
Moldir Azimbay(20 of116)
Gymnast Moldir Azimbay from Kazakhstan performs on the uneven bars during the artistic gymnastics women's qualifications at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Julie Jacobson) (credit:AP)
Olena Kostevych(21 of116)
Ukraine's Olena Kostevych shoots during the women's 10-meter air pistol final at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. Kostevych finished third to win bronze in the event.(AP Photo/Rebecca Blackwell) (credit:AP)
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The pack of cyclists ride past Buckingham Palace in the rain during the Women's Road Cycling race at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Matt Rourke) (credit:AP)
(23 of116)
Visitors by their tickets for the Olympic Park at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Emilio Morenatti) (credit:AP)
Raul Neto(24 of116)
Australia's Patrick Mills celebrates after hitting a 3-point shot and being fouled by Brazil during a men's basketball game at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Charles Krupa) (credit:AP)
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Swimmers start their heat in the men's 100-meter backstroke at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Daniel Ochoa De Olza) (credit:AP)
Kristyna Palesova(26 of116)
Czech gymnast Kristyna Palesova performs on the vault during the artistic gymnastics women's qualifications at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Julie Jacobson) (credit:AP)
Annika Urvikko(27 of116)
Gymnast Annika Urvikko from Finland performs on the uneven bars at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Julie Jacobson) (credit:AP)
Jennie Johansson(28 of116)
Sweden's Jennie Johansson competes in the women's 100-meter breaststroke swimming heat at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Matt Slocum) (credit:AP)
Yun Choi Om(29 of116)
North Korea's Yun Choi Om lifts during the men's 56-kg, group B, weightlifting competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Hassan Ammar) (credit:AP)
Bombayla Devi Laishram(30 of116)
India's Bombayla Devi Laishram shoots during the women's archery team competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Marcio Jose Sanchez) (credit:AP)
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United States' Ricky Berens, top, United States' Ryan Lochte, center, and China's Sun Yang men's 200-meter freestyle swimming heat at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/David J. Phillip) (credit:AP)
Clemens Doppler(32 of116)
Austria's Clemens Doppler dives for the ball during a beach volleyball match against Brazil at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Dave Martin) (credit:AP)
Muller Dinda & Oribe Peralta(33 of116)
Gabon's Muller Dinda (2) jumps for the ball against Mexico's Oribe Peralta, bottom, during the group B men's soccer match at the London 2012 Summer Olympics, in Coventry, England, Sunday, July 29, 2012. (AP Photo/Hussein Malla) (credit:AP)
Tony Parker(34 of116)
France's Tony Parker argues a call with an official during the first half of a preliminary men's basketball game against the USA at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Eric Gay) (credit:AP)
Tang Peng(35 of116)
Tang Peng of Hong Kong competes against Noshad Alamiyan of Iran during the men's singles table tennis at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Sergei Grits) (credit:AP)
Kobe Bryant (36 of116)
USA's Kobe Bryant bites his jersey during the first half of a preliminary men's basketball game against France at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Charles Krupa) (credit:AP)
Thomas Edgar, Rodrigo Quiroga(37 of116)
Australia's Thomas Edgar (19) spikes the ball past Argentina's Rodrigo Quiroga (9) during a men's volleyball preliminary match at the 2012 Summer Olympics Sunday, July 29, 2012, in London. (AP Photo/Chris O'Meara) (credit:AP)
Gabrielle Douglas(38 of116)
(credit:AP)
Abigail Johnston and Kelci Bryant(39 of116)
US Silver medalists Abigail Johnston, front, and Kelci Bryant, rear, compete during the 3 Meter Synchronized Springboard final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Michael Sohn) (credit:AP)
Abigail Johnston and Kelci Bryant(40 of116)
US Silver medalists Abigail Johnston, front, and Kelci Bryant, rear, compete during the 3 Meter Synchronized Springboard final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Michael Sohn) (credit:AP)
Marianne Vos(41 of116)
Marianne Vos, left, of The Netherlands, celebrates as she crosses the finish line to win the gold medal in the Women's Road Cycling race at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Christophe Ena) (credit:AP)
Huang Cunguang(42 of116)
China's Huang Cunguang competes in the men's K-1 kayak slalom heats at the Lee Valley White Water Center at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Victor R. Caivano) (credit:AP)
Dalibor Doder(43 of116)
Sweden's Dalibor Doder, left, is tackled by Tunisia's Wissem Hmam, right, during their men's handball preliminary match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Vadim Ghirda) (credit:AP)
Liu Qiang and Luke Jackson(44 of116)
China's Liu Qiang, and Australia's Luke Jackson react after Liu won their men's light 60-kg boxing match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Patrick Semansky) (credit:AP)
Lebron James(45 of116)
USA's Lebron James (6) grabs a rebound during the first half of a preliminary men's basketball game against France at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Eric Gay, pool) (credit:AP)
Abigail Johnston, Kelci Bryant(46 of116)
Abigail Johnston and Kelci Bryant of the USA compete during the 3 Meter Synchronized Springboard final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. USA won the silver medal in the event. (AP Photo/Mark J. Terrill) (credit:AP)
Wu Minxia(47 of116)
Wu Minxia of China, left, and He Zi compete during the 3 Meter Synchronized Springboard final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. China won the gold medal in the event. (AP Photo/Mark J. Terrill) (credit:AP)
Jennifer Pinches(48 of116)
Gymnast Jennifer Pinches from Great Britain performs on the floor during the Artistic Gymnastic women's qualifications at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Julie Jacobson) (credit:AP)
Tony Parker (49 of116)
France's Tony Parker is stripped of the basketball by USA's James Harden, right, during the first half of a preliminary men's basketball game at the 2012 Summer Olympics, Friday, July 27, 2012, in London. (AP Photo/Eric Gay) (credit:AP)
Abigail Johnston and Kelci Bryant(50 of116)
US Silver medalists Abigail Johnston, left, and Kelci Bryant, right, pose during the medal ceremony for the 3 Meter Synchronized Springboard final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Michael Sohn) (credit:AP)
Yoshiaki Oiwa(51 of116)
Yoshiaki Oiwa, of Japan, right, is congratulated by Ruy Fonseca, of Brazil, as they pass each other at the exit of the ring after Oiwa took the lead in the equestrian individual eventing dressage phase at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/David Goldman) (credit:AP)
Emilie Heymans and Jennifer Abe(52 of116)
Bronze medalists Emilie Heymans, front, and Jennifer Abel, rear, from Canada pose during the medal ceremony for the 3 Meter Synchronized Springboard final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Michael Sohn) (credit:AP)
Kristin Armstrong(53 of116)
The United States' Kristin Armstrong, right, leads the way during the women's cycling road race final at the 2012 Summer Olympics on Sunday, July 29, 2012, in London. (AP Photo/Stefano Rellandini, Pool) (credit:AP)
Yi Jianlian, Marc Gasol(54 of116)
China's Yi Jianlian, right, tries to block Spain's Marc Gasol during a men's basketball game at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Charles Krupa) (credit:AP)
Kyla Ross(55 of116)
U.S. gymnast Kyla Ross performs on the balance beam during the Artistic Gymnastics women's qualification at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Gregory Bull) (credit:AP)
Maya Yoshida(56 of116)
Japan's Maya Yoshida, rear, vies for the ball with Morocco's Houssine Kharja (14) during the group D men's soccer match at St James' Park in Newcastle, England, at the London 2012 Summer Olympics, Sunday, July 29, 2012. (AP Photo/Scott Heppell) (credit:AP)
Malin Petersen(57 of116)
Malin Petersen, of Sweden, gestures as she enters the ring to cheers from the crowd before competing in the equestrian eventing dressage phase at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/David Goldman) (credit:AP)
Wu Minxia and He Zi(58 of116)
Gold medalists Wu Minxia, front, and He Zi, rear, compete during the 3 Meter Synchronized Springboard final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Lefteris Pitarakis) (credit:AP)
Kyla Ross(59 of116)
U.S. gymnast Kyla Ross performs on the balance beam during the Artistic Gymnastics women's qualification at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Gregory Bull) (credit:AP)
v(60 of116)
U.S. gymnast Gabrielle Douglas performs on the balance beam during the Artistic Gymnastics women's qualification at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Gregory Bull) (credit:AP)
David Lee, Matthew Anderson, Aleksandar Atanasijevic(61 of116)
Serbia's Aleksandar Atanasijevic, center, spikes the ball between United States' Matthew Anderson, left, and David Lee during a men's preliminary volleyball match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Jeff Roberson) (credit:AP)
Jordyn Wieber(62 of116)
U.S. gymnast Jordyn Wieber cries after she failed to qualify for the women's all-around finals during the Artistic Gymnastics women's qualification at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Gregory Bull) (credit:AP)
Deniss Karpak(63 of116)
Estonia's Deniss Karpak competes during the finn dinghy class race 2 at the London 2012 Summer Olympics, Sunday, July 29, 2012, in Weymouth and Portland, England. (AP Photo/Bernat Armangue) (credit:AP)
Laura Ludwig(64 of116)
Germany's Laura Ludwig reacts after beating Australia during a beach volleyball match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Dave Martin) (credit:AP)
Annie Martin(65 of116)
Annie Martin from Canada dives for a ball during the Beach Volleyball match against Great Britain at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Petr David Josek) (credit:AP)
Jessica Lopez (66 of116)
Venezuelan gymnast Jessica Lopez performs on the uneven bars during the artistic gymnastics women's qualifications at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Matt Dunham) (credit:AP)
Man Zhong(67 of116)
China's Man Zhong reacts after defeating South Korea's Kim Jung-hwan during the men's individual sabre round of 32 fencing at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Andrew Medichini) (credit:AP)
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Fans watch the canoe slalom at Lee Valley Whitewater Center, at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Kirsty Wigglesworth) (credit:AP)
Dana Vollmer(69 of116)
United States' Dana Vollmer celebrates after her gold medal win in the women's 100-meter butterfly swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Matt Slocum) (credit:AP)
Freddie Evans(70 of116)
Great Britain's Freddie Evans is sprayed with water between rounds against Algeria's Ilyas Abbadi, during their men's welter 69-kg boxing match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Ivan Sekretarev) (credit:AP)
Ryan Lochte(71 of116)
United States' Ryan Lochte, left, competes in a men's 200-meter freestyle swimming semifinal at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/David J. Phillip) (credit:AP)
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British soldiers watch a gymnast perform during the artistic gymnastics women's qualifications at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Matt Dunham) (credit:AP)
Talita Antunes(73 of116)
Talita Antunes from Brazil signals during the Beach Volleyball match against Netherlands at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Petr David Josek) (credit:AP)
Iuliia Efimova(74 of116)
Russia's Iuliia Efimova competes in a women's 100-meter breaststroke swimming semifinal at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/David J. Phillip) (credit:AP)
Huang Qiushuang(75 of116)
Chinese gymnast Huang Qiushuang performs on the uneven bars during the artistic gymnastics women's qualifications at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Matt Dunham) (credit:AP)
Dana Vollmer(76 of116)
United States' Dana Vollmer holds her gold medal for her win in the women's 100-meter butterfly swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012.(AP Photo/Matt Slocum) (credit:AP)
Cameron van der Burgh(77 of116)
South Africa's Cameron van der Burgh reacts after winning gold and setting a new world record in the men's 100-meter breaststroke swimming final at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. Van der Burgh set a new world record with a time of 58.46. (AP Photo/Mark Duncan) (credit:AP)
Delfina Merino(78 of116)
Argentinian player Delfina Merino falls during the women's hockey preliminary match against South Africa at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. Argentina won 7-1. (AP Photo/Bullit Marquez) (credit:AP)
Valentin Hristov(79 of116)
Valentin Hristov of Azerbaijan competes during the mens 56-kg, group A, weightlifting competition at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Mike Groll) (credit:AP)
Jo-Wilfried Tsonga(80 of116)
Jo-Wilfried Tsonga of France changes his shirt during a break in his match against Thomaz Bellucci of Brazil at the All England Lawn Tennis Club in Wimbledon, London at the 2012 Summer Olympics, Sunday, July 29, 2012. (AP Photo/Elise Amendola) (credit:AP)
David Beckham, Prince William(81 of116)
British soccer player David Beckham, center left, chats with Britain's Prince William, center right, in the stands during the men's group A soccer match between Britain and the United Arab Emirates at the 2012 Summer Olympics, Sunday, July 29, 2012, at Wembley Stadium in London. (AP Photo/Ben Curtis) (credit:AP)
Fabio Fognini(82 of116)
Fabio Fognini of Italy returns a shot to Novak Djokovic at the All England Lawn Tennis Club at Wimbledon, in London, at the 2012 Summer Olympics, Sunday, July 29, 2012. (AP Photo/Mark Humphrey) (credit:AP)
Carmelo Anthony(83 of116)
U.S. forward Carmelo Anthony, second from left, reacts after shooting while being challenged by French forward Boris Diaw, right, next to French guard Tony Parker, right, during the men's basketball preliminary round group A match between the United States and France at the 2012 Summer Olympics, on Sunday, July 29, 2012 in London. (AP Photo/Mark Ralston, Pool) (credit:AP)
Victoria Komova(84 of116)
Russian gymnast Victoria Komova performs on the uneven bars during the Artistic Gymnastics women's qualification at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Gregory Bull) (credit:AP)
Adam Wright(85 of116)
Adam Wright of the United States reacts after scoring against Montenegro in a preliminary water polo match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. The U.S. won 8-7. (AP Photo/Julio Cortez) (credit:AP)
Christian Sprenger(86 of116)
Australia's Christian Sprenger reacts after his silver medal win in the men's 100-meter breaststroke swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Matt Slocum) (credit:AP)
Michael Phelps and Fabien Gilot (87 of116)
United States' Michael Phelps, left, and France's Fabien Gilot compete in the men's 4x100-meter freestyle relay final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/David J. Phillip) (credit:AP)
Amaury Lavaux(88 of116)
France's Amaury Lavaux, left, France's Clement Lefert, center, and France's Fabien Gilot celebrate as they win gold in the men's 4x100-meter freestyle relay final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Mark J. Terrill) (credit:AP)
Mladan Janovic, Jeff Powers(89 of116)
The arms of Mladan Janovic, front, of Montenegro and Jeff Powers of the United States interlock during a preliminary water polo match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. The U.S. won 8-7. (AP Photo/Julio Cortez) (credit:AP)
Fabio Fognini(90 of116)
Fabio Fognini of Italy returns a shot to Novak Djokovic at the All England Lawn Tennis Club at Wimbledon, in London, at the 2012 Summer Olympics, Sunday, July 29, 2012. (AP Photo/Mark Humphrey) (credit:AP)
Ryan Lochte(91 of116)
United States' Ryan Lochte reacts after his relay team's silver medal win in the men's 4x100-meter freestyle relay final men's relay at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Daniel Ochoa De Olza) (credit:AP)
Novak Djokovic(92 of116)
Novak Djokovic of Serbia slips on the grass as he plays Fabio Fognini at the All England Lawn Tennis Club at Wimbledon, in London, at the 2012 Summer Olympics, Sunday, July 29, 2012. The match was interrupted for several hours by rain. (AP Photo/Mark Humphrey) (credit:AP)
April Ross (93 of116)
April Ross of the United States sets the ball during a beach volleyball match against Argentina at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Dave Martin) (credit:AP)
Michael Phelps and Ryan Lochte(94 of116)
United States' Michael Phelps, right, and United States' Ryan Lochte, left, prepare for the men's 4x100-meter freestyle relay final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Michael Sohn) (credit:AP)
Ryan Lochte and Michael Phelps(95 of116)
United States' Ryan Lochte, second from right, and United States' Michael Phelps, right, congratulate the French relay team on their gold medal in the men's 4x100-meter freestyle relay final after they won silver at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/David J. Phillip) (credit:AP)
Amaury Leveaux, Fabien Gilot, Clement Lefert and Yannick Agnel (96 of116)
From left, France's Amaury Leveaux, France's Fabien Gilot, France's Clement Lefert and France's Yannick Agnel pose with their gold medals for the men's 4x100-meter freestyle relay final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Michael Sohn) (credit:AP)
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Spanish gymnast Ana Maria Izurieta performs on the balance beam during the Artistic Gymnastic women's qualifications at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Julie Jacobson) (credit:AP)
Elsa Baquerizo and Liliana Fernandez(98 of116)
Elsa Baquerizo, right, from Spain celebrates with her teammate Liliana Fernandez, left, winning a point against Netherlands in their Beach Volleyball match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Petr David Josek) (credit:AP)
Michael Phelps(99 of116)
United States' Michael Phelps poses with his silver medal for the men's 4x100-meter freestyle relay final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Michael Sohn) (credit:AP)
Mathieu Doby(100 of116)
Belgium's Mathieu Doby competes in the men's K-1 kayak slalom heats at the Lee Valley White Water Center at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Victor R. Caivano) (credit:AP)
Juan Mata (101 of116)
Spain's Juan Mata reacts after being defeated by Honduras at the end of the group D men's soccer match at St. James' Park, in Newcastle, England, during the London 2012 Summer Olympics, Sunday, July 29, 2012. (AP Photo/Scott Heppell) (credit:AP)
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Argentinean players celebrate their seventh goal by Noel Barrionuevo (27) during the women's hockey preliminary match against South Africa at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. Argentina won 7-1. (AP Photo/Bullit Marquez) (credit:AP)
Ingo Kindervater (103 of116)
Germany's Ingo Kindervater returns the shuttlecock while playing with teammate Johannes Schoettler against Cai Yun and Fu Haifeng, of China, in a men's doubles badminton match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Andres Leighton) (credit:AP)
Ariel Hsing(104 of116)
Ariel Hsing of the United States competes against Li Xiaoxia of China during their women's table tennis match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Sergei Grits) (credit:AP)
Bill Gates(105 of116)
Microsoft founder Bill Gates reacts to Ariel Hsing of the United States during her match against No. 2 seed Li Xiaoxia of China at women's table tennis during the 2012 Summer Olympics, Sunday, July 29, 2012, in London. Billionaires Gates and Warren Buffett have played a few practice shots with Hsing while she attended Berkshire Hathaway's annual meeting to give practice lessons. Hsing calls the two "Uncle Warren and Uncle Bill."(AP Photo/Sergei Grits) (credit:AP)
David De Gea(106 of116)
Spain's David De Gea reacts after being defeated by Honduras at the end of the group D men's soccer match at St. James' Park, in Newcastle, England, during the London 2012 Summer Olympics, Sunday, July 29, 2012. (AP Photo/Scott Heppell) (credit:AP)
Chung Jae-sung and Lee Yong-dae(107 of116)
South Korea's Chung Jae-sung, right, and Lee Yong-dae, play against Japan's Naoki Kawamae and Shoji Sato, unseen, at a men's doubles badminton match of the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Saurabh Das) (credit:AP)
Kosuke Kitajima(108 of116)
Japan's Kosuke Kitajima reacts after competing in the men's 100-meter breaststroke swimming final at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Mark J. Terrill) (credit:AP)
Kate Walsh(109 of116)
Britain's Kate Walsh falls to the ground after being hit on the chin by Japan's Akane Shibata, unseen, during the women's hockey preliminary match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. Britain won 4-0. (AP Photo/Bullit Marquez) (credit:AP)
(110 of116)
The British flag flutters in the wind as it's backdropped by the moon near the ExCeL Centre at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Dmitry Lovetsky) (credit:AP)
Catalina Ponor(111 of116)
Romania's gymnast Catalina Ponor performs on the floor during the Artistic Gymnastics women's qualification at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Gregory Bull) (credit:AP)
Sun Yang (112 of116)
China's Sun Yang stretches before his swim in the men's 200-meter freestyle semifinal at the Aquatics Centre in the Olympic Park during the 2012 Summer Olympics in London, Sunday, July 29, 2012. (AP Photo/Matt Slocum) (credit:AP)
Nikolay Kovalev(113 of116)
Russia's Nikolay Kovalev reacts after winning the bronze medal match against Romania's Rares Dumitrescu in the men's fencing individual sabre at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Dmitry Lovetsky) (credit:AP)
Phil Dalhausser and Todd Rogers(114 of116)
Phil Dalhausser, right, and Todd Rogers, left, of US celebrate after defeating Japan in their Beach Volleyball match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Petr David Josek) (credit:AP)
Thomas Mogensen(115 of116)
Denmark's Thomas Mogensen, background is challenged by Hungary's Tamas Mocsai, left and Gergely Harsanyi, right, during their men's handball preliminary match at the 2012 Summer Olympics, Sunday, July 29, 2012, in London. (AP Photo/Vadim Ghirda) (credit:AP)
Diego Occhiuzzi (116 of116)
Italy's Diego Occhiuzzi reacts after defeating Romania's Rares Dumitrescu, left, in a semifinal in the men's fencing individual sabre at the 2012 Summer Olympics, Sunday, July 29, 2012, in London.(AP Photo/Dmitry Lovetsky) (credit:AP)