Dominic Thiem wins the U.S. Open - the 1st to do so after dropping the 1st 2 sets of a men's final since 1949
Austria's Dominic Thiem is the first man to win the U.S. Open after trailing 2-0 in sets in the final since Pancho Gonzalez did it in 1949 at an event then known as the U.S. Champi…