NEW YORK, NY - AUGUST 28: Novak Djokovic of Serbia shakes hands with Marton Fucsovics of Hungary after his win in the men's singles first round match on Day Two of the 2018 US Open at the USTA Billie Jean King National Tennis Center on August 28, 2018 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Matthew Stockman/Getty Images)
