World’s top tennis player Novak Djokovic of Serbia won his first U.S. Open title Monday evening after beating defending champion Rafael Nadal of Spain 6-2, 6-4, 6-7, 6-1 in the men’s final at Flushing Meadows in New York. Djokovic, who produced a masterful display of tactics and precision in windy conditions at Arthur Ashe Stadium, […]