Rafael Nadal won his first U.S. Open title to complete a career Grand Slam, beating Novak Djokovic 6-4, 5-7, 6-4, 6-2 Monday in a thrilling final filled with fantastic shotmaking by both men and interrupted by a thunderstorm a day after it was postponed by rain. Grand Slam - Novak Djokovic - Rafael Nadal - US Open - sport