LONDON, ENGLAND - JULY 04:  Kei Nishikori of Japan looks dejected as he recieves physio treament during the Men's Singles fourth round match against Marin Cilic of Croatia on day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 4, 2016 in London, England.  (Photo by Adam Pretty/Getty Images)