Novak Djokovic Beats Juan Martin Del Potro to Win US Open Novak Djokovic has won his 14th career Grand Slam singles title. He achieved the feat after beating Juan Martin Del Potro 6-3, 7-6, 6-3 in Sunday's men's final. It's Djokovic's second consecutive major win after his victory at Wimbledon two months ago. The victory ties him with Pete Sampras for third most on the men's tennis Grand Slam title list. He still trails Roger Federer by six and is three behind Rafael Nadal for second on the list. It is Djokovic's third U.S. Open title and first since 2015. Djokovic, the No. 6 seed, missed the U.S. Open last year with an elbow injury.