2019 US Open Tennis Tournament- Day Five.  Serena Williams of the United States hits autographed balls in to the crowd after her win against Carolina Muchova of the Czech Republic in the Women's Singles Round Three match on Arthur Ashe Stadium at the 2019 US Open Tennis Tournament at the USTA Billie Jean King National Tennis Center on August 30th, 2019 in Flushing, Queens, New York City.  (Photo by Tim Clayton/Corbis via Getty Images)
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