New York: World number one Novak Djokovic claimed his second US Open title and 10th career Grand Slam after defeating Roger Federer in a pulsating four-set finale at Flushing Meadows.

The Serbian saved 19 of 23 break points as he secured a 6-4, 5-7, 6-4, 6-4 win over Federer in a gruelling contest that lasted three hours and 20 minutes to win his third major of the year.