Wimbledon stars in action

Sabine Lisicki of Germany reacts after defeating Agnieszka Radwanska of Poland during their Women's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. AP Photo

Sabine Lisicki of Germany plays a return to Agnieszka Radwanska of Poland during their Women's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. AP Photo

Agnieszka Radwanska of Poland stretches for a return to Sabine Lisicki of Germany during their Women's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. AP Photo

Agnieszka Radwanska of Poland plays a return to Sabine Lisicki of Germany during their Women's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. AP Photo

Bob Bryan and Mike Bryan of the United States chest bump after defeating Rohan Bopanna of India and Edouard Roger Vasselin of France in their Men's doubles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. AP Photo

Mike Bryan, right, and Bob Bryan of the United States play a return to Rohan Bopanna of India and Edouard Roger Vasselin of France Men's doubles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. AP Photo

Sabine Lisicki of Germany Agnieszka smashes the ball as she plays Radwanska of Poland in a Women's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. AP Photo

Sabine Lisicki of Germany smashes the ball as she plays Agnieszka Radwanska of Poland during their Women's singles semifinal match at the All England Lawn Tennis Championships in Wimbledon, London, Thursday, July 4, 2013. AP Photo