Juan Martin del Potro stunned five-times champion Roger Federer in a pulsating five-set final to claim the US Open men’s singles crown at New York yesterday. The tall (6ft 6ins) and left-handed Argentine won the action-packed match 3-6, 7-6, 4-6, 7-6, 6-2 to capture his first Grand Slam crown at a floodlit Arthur Ashe Stadium. In a four-hour tussle that featured countless Federer miss-hits, Hawk-Eye disputes, clashes with the umpire and high-fives with the fans, it was Del Potro`s show-stopping forehands that ultimately shone through and denied the Swiss a modern-era record sixth successive title. After being gifted his third match point with a double fault, an incredulous Del Potro kept his eye on the ball as he watched a Federer backhand float long to seal victory. "I had two dreams this week. One was to win the US Open and the other one is to be like Roger," the 20-year-old Del Potro told the cheering crowd as he picked up $1.85 million for his victory. PHOTO: Roger Federer (left) and Juan Martin del Porto with their trophies at the US Open yesterday.