Wimbledon 2011 day 10 - in pictures

The weather at Wimbledon this year has taken its toll on the tournament ... and on the faces of Robert Redford and Sir Cliff Richard, by the look of it Photograph: Tom Jenkins for The Guardian Victoria Azarenka and Petra Kvitova are first up on Centre Court. Kvitova dominates the opening set, breaking her opponent in the fourth game and again in the fifth Photograph: Tom Jenkins for The Guardian But Kvitova, who lost to Serena Williams at this stage last year, begins to pay the price for her attacking style. Her unforced errors help Azarenka (pictured) to an early break in the second set. Azarenka goes on to win the set 6-3, despite spurning her first two set points Photograph: Tom Jenkins for The Guardian It's hard to predict who will succeed as the match heads into a deciding set Photograph: Tom Jenkins for The Guardian Kvitova's first service game of the third set is faultless, and she follows it with a critical break which ultimately steers her to a 6-1 3-6 6-2 victory Photograph: Tom jenkins for The Guardian Andy Murray, who faces a semi-final match with Rafael Nadal on Friday, stretches his back before beginning a practice session. The Scot appeared to injure his hip in the last round against Lopez. Wonder if he's still feeling the pain? Photograph: Tom Jenkins for The Guardian Murray looks fluid enough as he knocks a few backhands across the court Photograph: Tom Jenkins for The Guardian Perhaps the ankles are of greater concern. They're strapped quite heavily which is rather unusual Photograph: Tom Jenkins for The Guardian His bag is emblazoned with messages of support Photograph: Tom Jenkins for The Guardian The stands are packed as he goes through the motions on Court 17 Photograph: Tom Jenkins for The Guardian Nearby, his opponent Nadal is honing his backhand Photograph: Tom Jenkins for The Guardian There's almost as much interest in these practice sessions as there is in the women's semi-finals on centre court Photograph: Tom Jenkins for The Guardian If Nadal gets this fired up for a training session, imagine what he'll be like in the match Photograph: Tom Jenkins for The Guardian Murray looks pretty menacing too Photograph: Tom Jenkins for The Guardian Murray is surrounded by security guards as he signs autographs on the way back from training Photograph: Tom Jenkins for The Guardian Back on centre court, the umpires are preparing the court for the women's semi-final between Germany's Sabine Lisicki and Russia's Maria Sharapova Photograph: Tom Jenkins for The Guardian A fan protests at Sharapova's notorious shrieking Photograph: Tom Jenkins for The Guardian Lisicki wins the first three games of the match Photograph: Tom Jenkins for The Guardian But Sharapova comes back strongly and claims the opening set 6-4 Photograph: Tom Jenkins for The Guardian It doesn't appear that Sharapova has heeded the message on that chap's t-shirt Photograph: Tom Jenkins for The Guardian She goes on to make two breaks early in the second set ... Lisicki's challenge is fading fast Photograph: Tom Jenkins for The Guardian Sharapova finishes her wildcard opponent off, winning the set 6-3. It's seven years since her last Wimbledon final and now she can look forward to another Photograph: Tom Jenkins for The Guardian Meanwhile, Lisicki leaves the court in tears Photograph: Tom Jenkins for The Guardian At least some people are leaving Wimbledon happy today - especially Liam Broady, who beat Robin Kern in the boys' quarter-finals on court 18 Photograph: Tom Jenkins for The Guardian