text: Federer relieved to return Roger Federer still appears unbeatable after he showed no signs of a torn thigh muscle to defeat Argentina #39;s Gaston Gaudio 6-1, 7-6 in the opening match of the ATP Masters Cup in Houston.
inputs: Federer relieved to return Roger Federer still appears unbeatable after he showed no signs of a torn thigh muscle to defeat Argentina #39;s Gaston Gaudio 6-1, 7-6 in the opening match of the ATP Masters Cup in Houston.