Juan Martin del Potro Pictures
NEW YORK, NY - SEPTEMBER 09: Juan Martin del Potro of Argentina poses with the runner-up trophy after losing his men's Singles finals match against Novak Djokovic of Serbia on Day Fourteen of the 2018 US Open at the USTA Billie Jean King National Tennis Center on September 9, 2018 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Julian Finney/Getty Images)