2017 U.S. Open Tennis Tournament - DAY TWO. Young fans jostle for an autograph from Rafael Nadal of Spain after his victory against Dusan Lajovic of Serbia during the Men’s Singles round one match at the US Open Tennis Tournament at the USTA Billie Jean King National Tennis Center on August 29, 2017 in Flushing, Queens, New York City.  (Photo by Tim Clayton/Corbis via Getty Images)