Juan Martin Del Potro the name which murmured my many people after he beat Roger Federer in the U.S Open Final. It will be the delightful moment for this youngster. Juan Martin was 20 year old Argentine player; he is the second Argentine to win the grand slam. He beat five times U>S champion Roger Federer by 3-6, 7-6, 4-6, 7-6, 6-2 to lift the trophy. It will be bit disappointed for Roger federer who eyes to win six consecutive U.S Open title. But at the end Juan Martin was good enough to beat Federer. Juan Martin Del Potro stuns No.3 seed Rafel Nadel in the semi final and confirms his berth in the final. But anyway yet another star is raised in Tennis court.