Tomas Berdych

Labor Day Match of the Day: Andy Roddick versus Tomas Berdych. Neither player has dropped a set in this tournament and the winner will be rewarded with a quarterfinals match against Roger Federer. Tommy Haas and James Blake have both endured bloody lead-ins and they’ll clash this afternoon.

The women’s bottom draw will get clearer tonight: the upstart Israeli Shahar Peer will take on the upstart Pole Aggie Radwanska.

Happy Birthday, Andy Roddick! The 2003 U.S. Open Champ turned 25 today and won after Jose Acasuso retired after the third set. Other ranked straight sets winners today: Tomas Berdych, Anna Chakvetadze and Nadia Petrova. Svetlana Kuznetsova and Andy Murray both needed to go the distance to win their matches.

Men's no. 14 Guillermo Canas was upset today and Tommy Haas is down a set, which you can track here.

Maria Sharapova and James Blake play tonight.