Martin Klizan Pictures

  • LONDON, ENGLAND - JULY 04: Martin Klizan of Slovakia walks off after declaring himself injured for his Gentlemen's Singles first round match against Novak Djokovic of Serbia on day two of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 4, 2017 in London, England. (Photo by Michael Steele/Getty Images)