Argentina's Juan Martin del Potro ended Roger Federer's five-year unbeaten reign at the US Open in five dramatic sets to win his first Grand Slam title.

The 20-year-old sixth seed twice fought back from a set down to win 3-6 7-6 (7-5) 4-6 7-6 (7-4) 6-2.

Del Potro is the first man other than Rafael Nadal to beat Federer in the final of a Grand Slam tournament.

Swiss star Federer, 28, had been going for a record-equalling sixth consecutive title at Flushing Meadows.

American Bill Tild...

Kim Clijsters completed an incredible return to Grand Slam tennis with a 7-5 6-3 win over Dane Caroline Wozniacki to claim her second US Open title.

The Belgian, 26, was a wildcard into her first Grand Slam tournament since 2007 after coming out of a two-and-a-half year retirement in August.

In that time she gave birth to a daughter, and so becomes the first mother since 1980 to win a Grand Slam.

She is also the first woman to win a major as a wildcard.

"This has been so exciting for ...