NEW YORK, NY - AUGUST 30:  Sam Querrey of the United States returns a shot against Dudi Sela of Israel during their second round Men's Singles match on Day Three of the 2017 US Open at the USTA Billie Jean King National Tennis Center on August 30, 2017 in the Flushing neighborhood of the Queens borough of New York City.  (Photo by Abbie Parr/Getty Images)