Southampton defeated Chelsea 2-1 to move up to 13th in the Premier League table while Wigan's 1-0 victory against Norwich plunged Sunderland deep into the relegation quagmire.

Rickie Lambert's free-kick earned Mauricio Pochettino his third success with the Saints after claiming the scalps of Manchester City and Liverpool, while Arouna Koné hit his 12th of the campaign as Wigan kept their first clean sheet of 2012-13 to move out of the bottom three.

Arsenal dismissed Reading 4-1 in Nigel Adkins' first game in the charge of the Royals, as they plunged to the foot of the league. Gervinho, Santi Cazorla, Olivier Giroud and Mikel Arteta registered for the Gunners with Hal Robson-Kanu replying for the visitors. Fellow fourth-place chasers Tottenham halted their collapse with a gusty 2-1 win at Swansea, with Gareth Bale hitting the winner.

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  • Sunderland v Manchester United - Premier League

    SUNDERLAND, ENGLAND - MARCH 30: Sunderland defender Titus Bramble (c, partially obscured) deflects Robin Van Persie's shot into his own net for the winning goal during the Barclays Premier League match between Sunderland and Manchester United at Stadium of Light on March 30, 2013 in Sunderland, England. (Photo by Stu Forster/Getty Images)

  • Manchester United's Robin Van Persie, right, celebrates his goal with his teammates during their English Premier League soccer match against Sunderland, at the Stadium of Light, Sunderland, England, Saturday, March 30, 2013. (AP Photo/Scott Heppell)

  • Manchester United's Robin Van Persie, centre, celebrates his goal, during their English Premier League soccer match against Sunderland, at the Stadium of Light, Sunderland, England, Saturday, March 30, 2013. (AP Photo/Scott Heppell)

  • Sunderland v Manchester United - Premier League

    SUNDERLAND, ENGLAND - MARCH 30: Sunderland player Danny Graham (l) looks on as Manchester United defender Nemanja Vidic (c) collides with his own goalkeeper, David De Gea during the Barclays Premier League match between Sunderland and Manchester United at Stadium of Light on March 30, 2013 in Sunderland, England. (Photo by Stu Forster/Getty Images)

  • FBL-ENG-PR-SUNDERLAND-MAN UTD

    Sunderland's Danny Rose (R) vies with Manchester United's Ecuadorian midfielder, Antonia Valencia (L) during the English Premier League football match between Sunderland and Manchester United at the Stadium of Light in Sunderland, England, on March 30, 2013. AFP PHOTO/GRAHAM STUART “ RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or “live” services. Online in-match use limited to 45 images, no video emulation. No use in betting, games or single club/league/player publications. ” (Photo credit should read GRAHAM STUART/AFP/Getty Images)

  • FBL-ENG-PR-SUNDERLAND-MAN UTD

    Sunderland's Irish defender John O'Shea (R) vies with Manchester United's Ecuadorian midfielder Antonio Valencia (L) during the English Premier League football match between Sunderland and Manchester United at the Stadium of Light in Sunderland, northeast England, on March 30, 2013. AFP PHOTO/GRAHAM STUART “ RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or “live” services. Online in-match use limited to 45 images, no video emulation. No use in betting, games or single club/league/player publications. ” (Photo credit should read GRAHAM STUART/AFP/Getty Images)

  • Sunderland v Manchester United - Premier League

    SUNDERLAND, ENGLAND - MARCH 30: Manchester United manager Sir Alex Ferguson signs autographs before the Barclays Premier League match between Sunderland and Manchester United at Stadium of Light on March 30, 2013 in Sunderland, England. (Photo by Stu Forster/Getty Images)

  • FBL-ENG-PR-SUNDERLAND-MAN UTD

    Sunderland's French midfielder, Alfred N'Diaye (L) vies with Manchester United's Japanese midfielder, Shinji Kagawa (R) during the English Premier League football match between Sunderland and Manchester United at the Stadium of Light in Sunderland, England, on March 30, 2013. AFP PHOTO/GRAHAM STUART “ RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or “live” services. Online in-match use limited to 45 images, no video emulation. No use in betting, games or single club/league/player publications. ” (Photo credit should read GRAHAM STUART/AFP/Getty Images)

  • Sunderland v Manchester United - Premier League

    SUNDERLAND, ENGLAND - MARCH 30: Sunderland player Phil Bardsley (floor) is challenged by Nemanja Vidic (r) and Jonny Evans during the Barclays Premier League match between Sunderland and Manchester United at Stadium of Light on March 30, 2013 in Sunderland, England. (Photo by Stu Forster/Getty Images)

  • Sunderland v Manchester United - Premier League

    SUNDERLAND, ENGLAND - MARCH 30: Sunderland player Danny Graham reacts during the Barclays Premier League match between Sunderland and Manchester United at Stadium of Light on March 30, 2013 in Sunderland, England. (Photo by Stu Forster/Getty Images)

  • Jay Rodriguez, Petr Cech

    Southampton's Jay Rodriguez, centre, scores pass Chelsea's goalkeeper Petr Cech during their English Premier League soccer match at St Mary's stadium, Southampton, England, Saturday, March 30, 2013. (AP Photo/Sang Tan)

  • John Terry

    Chelsea's John Terry, third left, celebrates his goal against Southampton with teammates during their English Premier League soccer match at St Mary's stadium, Southampton, England, Saturday, March 30, 2013. (AP Photo/Sang Tan)

  • Southampton v Chelsea - Premier League

    SOUTHAMPTON, ENGLAND - MARCH 30: Rickie Lambert (L) of Southampton scores his team's second goal with a free kick during the Barclays Premier League match between Southampton and Chelsea at St Mary's Stadium on March 30, 2013 in Southampton, England. (Photo by Mike Hewitt/Getty Images)

  • Southampton v Chelsea - Premier League

    SOUTHAMPTON, ENGLAND - MARCH 30: Rickie Lambert (2nd L) of Southampton celebrates with teammates after scoring his team's second goal with a free kick during the Barclays Premier League match between Southampton and Chelsea at St Mary's Stadium on March 30, 2013 in Southampton, England. (Photo by Mike Hewitt/Getty Images)

  • Southampton v Chelsea - Premier League

    SOUTHAMPTON, ENGLAND - MARCH 30: Fernando Torres of Chelsea looks on prior to kickoff during the Barclays Premier League match between Southampton and Chelsea at St Mary's Stadium on March 30, 2013 in Southampton, England. (Photo by Mike Hewitt/Getty Images)

  • Southampton v Chelsea - Premier League

    SOUTHAMPTON, ENGLAND - MARCH 30: Fernando Torres of Chelsea looks on during the Barclays Premier League match between Southampton and Chelsea at St Mary's Stadium on March 30, 2013 in Southampton, England. (Photo by Mike Hewitt/Getty Images)

  • Southampton v Chelsea - Premier League

    SOUTHAMPTON, ENGLAND - MARCH 30: Nathaniel Clyne of Southampton and Ryan Bertrand of Chelsea compete for the ball during the Barclays Premier League match between Southampton and Chelsea at St Mary's Stadium on March 30, 2013 in Southampton, England. (Photo by Mike Hewitt/Getty Images)

  • Southampton v Chelsea - Premier League

    SOUTHAMPTON, ENGLAND - MARCH 30: Frank Lampard of Chelsea and Steven Davis of Southampton compete for the ball during the Barclays Premier League match between Southampton and Chelsea at St Mary's Stadium on March 30, 2013 in Southampton, England. (Photo by Mike Hewitt/Getty Images)

  • Southampton v Chelsea - Premier League

    SOUTHAMPTON, ENGLAND - MARCH 30: John Terry of Chelsea heads the ball clear under pressure from Rickie Lambert of Southampton during the Barclays Premier League match between Southampton and Chelsea at St Mary's Stadium on March 30, 2013 in Southampton, England. (Photo by Mike Hewitt/Getty Images)

  • Rafael Benitez

    Chelsea's manager Rafael Benitez reacts as he watches his team play against Southampton during their English Premier League soccer match at St Mary's stadium, Southampton, England, Saturday, March 30, 2013. (AP Photo/Sang Tan)

  • FBL-ENG-PR-SWANSEA-TOTTENHAM

    Swansea City's Spanish midfielder Miguel Michu (C) reacts after Tottenham Hotspur players celebrate their opening goal during the Premiership match at The Liberty Stadium in Swansea on March 30, 2013. AFP PHOTO / ADRIAN DENNIS “ RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or “live” services. Online in-match use limited to 45 images, no video emulation. No use in betting, games or single club/league/player publications. ” (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)

  • Swansea City v Tottenham Hotspur - Premier League

    SWANSEA, WALES - MARCH 30: Jan Vertonghen of Tottenham celebrates with team-mates after scoring their first goal during the Barclays Premier League match between Swansea City and Tottenham Hotspur at Liberty Stadium on March 30, 2013 in Swansea, Wales. (Photo by Christopher Lee/Getty Images)

  • FBL-ENG-PR-SWANSEA-TOTTENHAM

    Tottenham Hotspur's Welsh midfielder Gareth Bale (L) vies for the ball against Swansea City's Canadian-born Dutch midfielder Jonathan de Guzman (R) during the Premiership match at The Liberty Stadium in Swansea on March 30, 2013. AFP PHOTO / ADRIAN DENNIS “ RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or “live” services. Online in-match use limited to 45 images, no video emulation. No use in betting, games or single club/league/player publications. ” (Photo credit should read ADRIAN DENNIS/AFP/Getty Images)

  • Soccer - Barclays Premier League - Swansea City v Tottenham Hotspur - Liberty Stadium

    Tottenham Hotspur's Gareth Bale (right) celebrates scoring the second goal with Jan Vertonghen and Aaron Lennon

  • Soccer - Barclays Premier League - Swansea City v Tottenham Hotspur - Liberty Stadium

    Swansea City's Miguel Michu (left) and Tottenham Hotspur's Michael Dawson confront each other

  • Soccer - Barclays Premier League - Swansea City v Tottenham Hotspur - Liberty Stadium

    Swansea City's Miguel Michu celebrates scoring his side's first goal

  • Soccer - Barclays Premier League - Swansea City v Tottenham Hotspur - Liberty Stadium

    Swansea City's Pablo Hernandez (left) and Tottenham Hotspur's Scott Parker battle for the ball

  • Swansea City v Tottenham Hotspur - Premier League

    SWANSEA, WALES - MARCH 30: Gareth Bale of Spurs tips the ball past Jonathan de Guzman of Swansea with his heel during the Barclays Premier League match between Swansea City and Tottenham Hotspur at Liberty Stadium on March 30, 2013 in Swansea, Wales. (Photo by Christopher Lee/Getty Images)

  • Soccer - Barclays Premier League - Swansea City v Tottenham Hotspur - Liberty Stadium

    Tottenham Hotspur's Gareth Bale (left) and Swansea City's Sung-Yeung Ki battle for the ball

  • Soccer - Barclays Premier League - Swansea City v Tottenham Hotspur - Liberty Stadium

    Gareth Bale, Tottenham Hotspur

  • Arsenal v Reading - Premier League

    LONDON, ENGLAND - MARCH 30: Mikel Arteta of Arsenal celebrates as he scores their fourth goal from the penalty spot during the Barclays Premier League match between Arsenal and Reading at Emirates Stadium on March 30, 2013 in London, England. (Photo by Jamie McDonald/Getty Images)

  • Arsenal v Reading - Premier League

    LONDON, ENGLAND - MARCH 30: Mikel Arteta of Arsenal scores their fourth goal from the penalty spot during the Barclays Premier League match between Arsenal and Reading at Emirates Stadium on March 30, 2013 in London, England. (Photo by Jamie McDonald/Getty Images)

  • Arsenal v Reading - Premier League

    LONDON, ENGLAND - MARCH 30: Gervinho of Arsenal celebrates as he scores their first goal during the Barclays Premier League match between Arsenal and Reading at Emirates Stadium on March 30, 2013 in London, England. (Photo by Jamie McDonald/Getty Images)

  • FBL-ENG-PR-ARSENAL-READING

    Arsenal's Ivorian striker Gervinho scores his goal during an English Premier League football match between Arsenal and Reading at The Emirates Stadium in London, on March 30, 2013. AFP PHOTO/IAN KINGTON “ RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or “live” services. Online in-match use limited to 45 images, no video emulation. No use in betting, games or single club/league/player publications. ” (Photo credit should read IAN KINGTON/AFP/Getty Images)

  • FBL-ENG-PR-ARSENAL-READING

    Arsenal's Ivorian striker Gervinho scores his goal during an English Premier League football match between Arsenal and Reading at The Emirates Stadium in London, on March 30, 2013. AFP PHOTO/IAN KINGTON “ RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or “live” services. Online in-match use limited to 45 images, no video emulation. No use in betting, games or single club/league/player publications. ” (Photo credit should read IAN KINGTON/AFP/Getty Images)

  • FBL-ENG-PR-ARSENAL-READING

    Arsenal's French striker Olivier Giroud (R) clashes with Reading's English goalkeeper Stuart Taylor (L) during the English Premier League football match between Arsenal and Reading at the Emirates Stadium in north London, England, on March 30, 2013. AFP PHOTO/IAN KINGTON “ RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or “live” services. Online in-match use limited to 45 images, no video emulation. No use in betting, games or single club/league/player publications. ” (Photo credit should read IAN KINGTON/AFP/Getty Images)

  • FBL-ENG-PR-ARSENAL-READING

    Arsenal's French striker Olivier Giroud celebrates scoring their third goal during the English Premier League football match between Arsenal and Reading at the Emirates Stadium in north London, England, on March 30, 2013. AFP PHOTO/IAN KINGTON “ RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or “live” services. Online in-match use limited to 45 images, no video emulation. No use in betting, games or single club/league/player publications. ” (Photo credit should read IAN KINGTON/AFP/Getty Images)

  • FBL-ENG-PR-ARSENAL-READING

    Arsenal's French striker Olivier Giroud (R) reacts after clashing with Reading's English goalkeeper Stuart Taylor (L) during the English Premier League football match between Arsenal and Reading at the Emirates Stadium in north London, England, on March 30, 2013. AFP PHOTO/IAN KINGTON “ RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or “live” services. Online in-match use limited to 45 images, no video emulation. No use in betting, games or single club/league/player publications. ” (Photo credit should read IAN KINGTON/AFP/Getty Images)

  • Arsenal's Nacho Monreal, right, vies for the ball with Reading's Hal Robson-Kanu during the English Premier League soccer match between Arsenal and Reading at the Emirates Stadium in London, Saturday, March 30, 2013. (AP Photo/Kirsty Wigglesworth)

  • FBL-ENG-PR-ARSENAL-READING

    Arsenal's Spanish midfielder Mikel Arteta (2nd R) celebrates scoring his penalty with Spanish midfielder Santi Cazorla (R) during the English Premier League football match between Arsenal and Reading at the Emirates Stadium in north London, England, on March 30, 2013. Arsenal won the game 4-1. AFP PHOTO/IAN KINGTON “ RESTRICTED TO EDITORIAL USE. No use with unauthorized audio, video, data, fixture lists, club/league logos or “live” services. Online in-match use limited to 45 images, no video emulation. No use in betting, games or single club/league/player publications. ” (Photo credit should read IAN KINGTON/AFP/Getty Images)

  • Soccer - Barclays Premier League - Wigan Athletic v Norwich City - DW Stadium

    Wigan Athletic's Arouna Kone (left) celebrates scoring against Norwich City with James McCarthy during the Barclays Premier League match at the DW Stadium, Wigan.

  • Soccer - Barclays Premier League - Wigan Athletic v Norwich City - DW Stadium

    Wigan Athletic's James McCarthy battles for the ball with Norwich City's Elliott Bennett during the Barclays Premier League match at the DW Stadium, Wigan.

  • Soccer - Barclays Premier League - Wigan Athletic v Norwich City - DW Stadium

    Wigan Athletic's James McCarthy (right) battles for the ball with Norwich City's Elliott Bennett during the Barclays Premier League match at the DW Stadium, Wigan.

  • Soccer - Barclays Premier League - Wigan Athletic v Norwich City - DW Stadium

    Wigan Athletic's Arouna Kone (left) celebrates scoring against Norwich City with James McCarthy during the Barclays Premier League match at the DW Stadium, Wigan.

  • Wigan Athletic's Joel Robles, right, tries to pickup injured Norwich City striker Kei Kamara during the English Premier League match at the DW Stadium, Wigan England Saturday March 30, 2013. (AP Photo/ Martin Rickett/PA Wire) UNITED KINGDOM OUT NO SALES NO ARCHIVE

  • Soccer - Barclays Premier League - Wigan Athletic v Norwich City - DW Stadium

    Wigan Athletic's Joel Robles (right) tries to pickup injured Norwich City striker Kei Kamara during the Barclays Premier League match at the DW Stadium, Wigan.

  • Soccer - Barclays Premier League - Wigan Athletic v Norwich City - DW Stadium

    Wigan Athletic's Antolin Alcaraz battles for the ball with Norwich City's Kei Kamara (right) during the Barclays Premier League match at the DW Stadium, Wigan.

  • Soccer - Barclays Premier League - Wigan Athletic v Norwich City - DW Stadium

    Wigan Athletic's Arouna Kone battles for the ball with Norwich City's Michael Turner (top) during the Barclays Premier League match at the DW Stadium, Wigan.

  • Wigan Athletic v Norwich City - Premier League

    WIGAN, ENGLAND - MARCH 30: Arouna Kone (R) of Wigan celebrates his goal during the Premier League match between Wigan Athletic and Norwich City at the DW Stadium on March 30, 2013 in Wigan, England. (Photo by Paul Thomas/Getty Images)

  • Wigan Athletic v Norwich City - Premier League

    WIGAN, ENGLAND - MARCH 30: Arouna Kone (R) of Wigan celebrates his goal during the Premier League match between Wigan Athletic and Norwich City at the DW Stadium on March 30, 2013 in Wigan, England. (Photo by Paul Thomas/Getty Images)

  • Soccer - Barclays Premier League - Manchester City v Newcastle United - Etihad Stadium

    Newcastle United's Steven Taylor (left), Papiss Cisse and Dan Gosling (right) stand dejected after Manchester City scored their fourth goal during the Barclays Premier League match at the Etihad Stadium, Manchester.

Manchester United are only 10 points away from a 20th title after a 1-0 triumph at Sunderland in the day's early kick-off. Robin van Persie's shot was deflected in for a Titus Bramble own goal, but their 18-point lead lasted only a couple of hours following Manchester City's thrashing of Newcastle. Carlos Tévez, David Silva, Vincent Kompany and Yaya Touré got the goals ahead of the Manchester derby in nine days' time.

And West Ham lifted themselves up to 11th in the table with a comfortable 3-1 stroll against West Brom at Upton Park. Andy Carroll hit two with a Gary O'Neill strike sandwiched in between.