Federico Delbonis Pictures
NEW YORK, NY - AUGUST 29: Federico Delbonis of Argentina returns a shot against Gilles Simon of France during their men's singles second round match on Day Five of the 2014 US Open at the USTA Billie Jean King National Tennis Center on August 29, 2014 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Streeter Lecka/Getty Images)