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2016 U.S. Open - Day 10 Andy Murray of Great Britain in action against Kei Nishikori of Japan in the Men's Singles Quarterfinal match on Arthur Ashe Stadium on day ten of the 2016 US Open Tennis Tournament at the USTA Billie Jean King National Tennis Center on September 7, 2016 in Flushing, Queens, New York City. (Photo by Tim Clayton/Corbis via Getty Images)

2016 U.S. Open - Day 10  Andy Murray of Great Britain in action against Kei Nishikori of Japan in the Men's Singles Quarterfinal match on Arthur Ashe Stadium on day ten of the 2016 US Open Tennis Tournament at the USTA Billie Jean King National Tennis Center on September 7, 2016 in Flushing, Queens, New York City.  (Photo by Tim Clayton/Corbis via Getty Images)