Juan Martin Del Potro of Argentina puts the ball which he missed to the other side of the net during the semifinal of gentlemen's singles against Novak Djokovic of Serbia on day 11 of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club in London, Britain on July 5, 2013. Juan Martin Del Potro lost 2-3. (Xinhua/Wang Lili)
Juan Martin Del Potro of Argentina reacts during the semifinal of gentlemen's singles against Novak Djokovic of Serbia on day 11 of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club in London, Britain on July 5, 2013. Juan Martin Del Potro lost 2-3. (Xinhua/Wang Lili)
Juan Martin Del Potro of Argentina puts the ball which he missed to the other side of the net during the semifinal of gentlemen's singles against Novak Djokovic of Serbia on day 11 of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club in London, Britain on July 5, 2013. Juan Martin Del Potro lost 2-3. (Xinhua/Wang Lili)
Juan Martin Del Potro of Argentina puts the ball which he missed to the other side of the net during the semifinal of gentlemen's singles against Novak Djokovic of Serbia on day 11 of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club in London, Britain on July 5, 2013. Juan Martin Del Potro lost 2-3. (Xinhua/Wang Lili)