Paolo Lorenzi Pictures
NEW YORK, NY - AUGUST 30: Paolo Lorenzi of Italy returns a shot against Gilles Muller of Luxembourg 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 Steven Ryan/Getty Images)