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CINCINNATI, OH - AUGUST 22: Roger Federer of Switzerland (L) shakes hands with Andy Murray of Great Britain after winning during the semifinals of the Western & Southern Open at the Linder Family Tennis Center on August 22, 2015 in Cincinnati, Ohio. (Photo by Rob Carr/Getty Images)

CINCINNATI, OH - AUGUST 22: Roger Federer of Switzerland (L) shakes hands with Andy Murray of Great Britain after winning during the semifinals of the Western & Southern Open at the Linder Family Tennis Center on August 22, 2015 in Cincinnati, Ohio.  (Photo by Rob Carr/Getty Images)