NEW YORK, USA - SEPTEMBER 11: Men's Singles Champion Stan Wawrinka of Switzerland (C) pose with his trophy after the Men's Singles Final Match against Novak Djokovic of Serbia (not seen) on Day Fourteen of the 2016 US Open at the USTA Billie Jean King National Tennis Center New York City, NY, United States on September 11, 2016.  (Photo by Volkan Furuncu/Anadolu Agency/Getty Images)