2016 U.S. Open - Day 10  Simona Halep of Romania in action against Serena Williams of the United States in the Women'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)
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