NEW YORK, NY - SEPTEMBER 03: Kei Nishikori of Japan hits balls to the fans after defeating Nicolas Mahut of France during his third round Men's Singles match on Day Six of the 2016 US Open at the USTA Billie Jean King National Tennis Center on September 3, 2016 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Elsa/Getty Images)
