LONDON, ENGLAND - JULY 06:  Stanislas Wawrinka of Switzerland (R) is congratulated at the net by David Goffin of Belgium after their Gentlemen's Singles Fourth Round match during day seven of the Wimbledon Lawn Tennis Championships at the All England Lawn Tennis and Croquet Club on July 6, 2015 in London, England.  (Photo by Shaun Botterill/Getty Images)