LONDON, ENGLAND - JUNE 17: Stan Wawrinka of Switzerland hits a volley playing with Grigor Dimitrov of Bulgaria during their Men's doubles match against Marcin Matkowski of Poland and Nenad Zimonjic of Serbia during day three of the Aegon Championships at Queen's Club on June 17, 2015 in London, England. (Photo by Justin Setterfield/Getty Images)
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