Adrian Mannarino Pictures
NEW YORK, NY - SEPTEMBER 02: Dominic Thiem of Austria (R) shakes hands with Adrian Mannarino of France after defeating him in their third round match on Day Six of the 2017 US Open at the USTA Billie Jean King National Tennis Center on September 2, 2017 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Al Bello/Getty Images)