September 1 at the Open

Many stars are in action on the first Saturday at the 2007 U.S. Open and a great day of tennis is on tap.

Defending champ Maria Sharapova plays her third-round match on Arthur Ashe court and she'll be followed by Andy Roddick on the main court. After Roddick, the most anticipated match of the day takes place on the big court as Roger Federer faces new American sensation John Isner. Nicole Vadisova and Shahar Peer follow Federer-Isner on Ashe and James Blake wraps up the evening on the main court. Blake will look for a quick match after a tough five-setter in round two.