US Open Tennis- Week 1 (86 images)

Switzerland's Roger Federer, second seed, returns the ball to Radek Stepanek of the Czech Republic in third-round action at the U.S. Open tennis championship at the U.S. National Tennis Center on August 31, 2008 in Flushing Meadows, New York. Federer won 6-3, 6-2, 6-2. (UPI Photo/Monika Graff)

Caroline Wozniacki of Denmark returns the ball to Serbia's Jelena Jankovic, second seed, in the third set of fourth-round action in at the U.S. Open tennis championship at the U.S. National Tennis Center on August 31, 2008 in Flushing Meadows, New York. Jankovic won 3-6, 6-2, 6-1. (UPI Photo/Monika Graff)

Andy Roddick, U.S.A, eighth seed, returns the ball to Italy's Andreas Seppi in the second set of third-round action during U.S. Open tennis championship at the U.S. National Tennis Center on August 31, 2008 in Flushing Meadows, New York. (UPI Photo/Monika Graff)

Switzerland's Roger Federer, second seed, serves to Radek Stepanek of the Czech Republic in third-round action at the U.S. Open tennis championship at the U.S. National Tennis Center on August 31, 2008 in Flushing Meadows, New York. Federer won 6-3, 6-2, 6-2. (UPI Photo/Monika Graff)