LONDON, ENGLAND - JUNE 25: Novak Djokovic of Serbia slips during his Gentlemen's Singles first round match against Florian Mayer of Germany on day two of the Wimbledon Lawn Tennis Championships at the... more 
LONDON, ENGLAND - JUNE 25: Novak Djokovic of Serbia slips during his Gentlemen's Singles first round match against Florian Mayer of Germany on day two of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 25, 2013 in London, England. (Photo by Julian Finney/Getty Images) less 
1 / 31
Getty Images | Photo By Julian Finney / Getty Images
Tue, Jun 25, 2013 11:36 AM EDT