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2016 U.S. Open - Day 6 Sunset during the Daniel Evans of Great Britain versus Stan Wawrinka of Switzerland Men's Singles round three match on Louis Armstrong Stadium on day six of the 2016 US Open Tennis Tournament at the USTA Billie Jean King National Tennis Center on September 3, 2016 in Flushing, Queens, New York City. (Photo by Tim Clayton/Corbis via Getty Images)

2016 U.S. Open - Day 6  Sunset during the Daniel Evans of Great Britain versus Stan Wawrinka of Switzerland Men's Singles round three match on Louis Armstrong Stadium on day six of the 2016 US Open Tennis Tournament at the USTA Billie Jean King National Tennis Center on September 3, 2016 in Flushing, Queens, New York City.  (Photo by Tim Clayton/Corbis via Getty Images)