Federer stays at 16 and five US Opens in a row, while Juan Martin Del Potro, the Argentinian giant who humiliated Rafael Nadal in the Semi Final yesterday, wins his first career grand slam in a huge five setter in Queens, New York. Federer was dominant in the first set, winning it 6:3. Del Potro was able to break Federer once in the second set after losing his serve, and was able to beat Federer in the tie break, winning the second set 7:6. Federer gained the lead again after the third set, but after losing another tie breaker in the fourth set, seemed broken. Del Potro crushed him in the fifth set, on way to his first career grand slam, before his 21st birthday.