Wimbledon 2013: day eight - in pictures

Andy Murray has a stretch during his training session ahead of his quarter final with former world number seven Fernando Verdasco on Wednesday. Photograph: Tom Jenkins for the Guardian

Fernando Verdasco of Spain trains on day eight. He is hoping to stop Murray reaching the semi final at Wimbledon for what would be a fifth consecutive year. Photograph: Tom Jenkins for the Guardian

Murray winces after missing a shot. The Scot holds an 8-1 head-to-head advantage over Verdasco, but they last played each other at the ATP World Tour Finals in 2009 and have never previously met on grass. Photograph: Tom Jenkins for the Guardian

Li Na of China competes against Agnieszka Radwańska on Centre Court. Li lost in three sets after a marathon encounter that included two rain breaks and finished under the Centre Court roof. Photograph: Tom Jenkins for the Guardian

Radwanska, who was runner-up last year to Serena Williams, reaches for a backhand during her match against Li Na. Photograph: Tom Jenkins for the Guardian

Radwanska celebrates a key point. The world number four of Poland won 7-6, 4-6, 6-2 to book a semi final place against Sabine Lisicki. Photograph: Tom Jenkins for the Guardian

Kaia Kanepi of Estonia, who defeated Laura Robson in the fourth round on Monday, struggles with a return against her opponent Sabine Lisicki. Photograph: Tom Jenkins for the Guardian

Lisicki, whose defeat of Serena Williams in the previous round left her shaking with joy, powers a forehand during her victory against Kanepi on No 1 Court. Lisicki won 6-3, 6-3. She faces another tough test in her semi final: forth seed Agnieszka Radwanska awaits. Photograph: Tom Jenkins for the Guardian

Marion Bartoli slams a forehand against Sloane Stephens. The Frenchwoman, who went on to win 6-4, 7-5, was later booed after she demanded to stop play as the rain fell at a crucial juncture in the first set – 4-5 to Bartoli, deuce and with Stephens serving to avoid going behind. Photograph: Tom Jenkins for the Guardian

American Sloane Stephens has the crowd on her side after the rain delay but the 20-year-old could not stop Bartoli, the 2007 runner-up, from progressing. Photograph: Tom Jenkins for the Guardian

Terry Wogan senses rain in the Royal Box as Vernon Kay, his wife Tess Daly and Richard Curtis, top left, chat during a pause in play. Photograph: Tom Jenkins of the Guardian

The court coverers had several run outs as Wimbledon suffered from intermittent rain. Photograph: Tom Jenkins for the Guardian

2011 champion Petra Kvitova of Czech Republic watches her return against Kirsten Flipkens. The world number 8 was hot favourite to win but went out in a shock defeat to the Belgian 4-6, 6-3, 6-4 in just over two hours. Flipkens, who has risen to number 20 in the world after a string of injuries plummeted her down the rankings, faces Bartoli in the semis. Photograph: Tom Jenkins for the Guardian

Kvitova reaches in vain to touch a wide ball from Flipkens. The Belgian's great friend and former world number one Kim Clijsters tweeted from her US home: 'Still drying my eyes :-)) So proud of how [Flipkens] handled the big occasion for the first time!' Photograph: Tom Jenkins for the Guardian