Andy Murray faces a towering obstacle at Wimbledon as he looks for a place in the quarter-finals.
The world number three will take to Centre Court to play the tallest player on the men's tour, 6ft 10ins Ivo Karlovic from Croatia.
And he believes the roaring home crowd can make the difference in his quest for a second title at the All England Club.
"When you can get the crowd involved in the match, it makes a huge difference to your performance,” the 28-year-old said.
“They help a lot once you get out there."
The business end of the tournament will get under way after the traditional middle Sunday break yesterday.
Wimbledon is the only grand slam which gives players a day free of play at the half way point.
The spotlight today will also be on the Williams sisters as they do battle on Centre Court for the sixth time in their glittering careers.
Younger sister Serena, 33, is on course for a grand slam of titles and chasing Steffi Graff’s record of 22 major wins.
Venus, 35, will have to overcome debilitating autoimmune disorder Sjogren’s Syndrome as she meets her sibling at a grand slam for the first time in six years.
Sjogren's attacks glands that secrete fluid such as tear and saliva.
Meanwhile, fiery Australian Nick Kyrgios will be back in action after being slapped with a code violation for bouncing his racquet into the crowd in the previous round.
The 20-year-old was also forced to deny that he had called an umpire "dirty scum" in the first round.
He plays France's Richard Gasquet on Court 2 for a place in the quarter-finals.