Juan Martin del Potro, 20, is the first Argentine to win the U.S Open since 1977.
Juan Martin del Potro, 20, is the first Argentine to win the U.S Open since 1977. MCT
Juan Martin del Potro, 20, is the first Argentine to win the U.S Open since 1977. MCT

Argentine stuns Federer to take U.S. Open tennis title

September 14, 2009 9:18 PM