LONDON, ENGLAND - JUNE 28:  Rafael Nadal of Spain (L) walks off the court after being defeated by Lukas Rosol of the Czech Republic during their Gentlemen's Singles second round match on day four of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on June 28, 2012 in London, England.  (Photo by Clive Rose/Getty Images)