Switzerland's Stan Wawrinka waits to receive a serve from France's Richard Gasquet during their men's quarter-finals match on day nine of the 2015 Wimbledon Championships at The All England Tennis Club in Wimbledon, southwest London, on July 8, 2015.   RESTRICTED TO EDITORIAL USE  --  AFP PHOTO / ADRIAN DENNIS (Photo by Adrian DENNIS / AFP) (Photo by ADRIAN DENNIS/AFP via Getty Images)