Five-time U.S. Open champion Roger Federer easily defeated his second-round opponent, Bjorn Phau, in straight sets Thursday night. The top-seeded Federer beat the German 6-3, 6-3, 6-2, setting up a third-round matchup with No. 25 Fernando Verdasco.
Earlier in the day, one of the few threats in Federer's side of the draw, Jo-Wilfried Tsonga, lost in four sets to unranked Martin Klizan. American Mardy Fish came from two sets down to defeat Nikolay Davydenko, setting up a potential match with Federer in the fourth round. Unranked American James Blake registered one of the day's most surprising results, quickly defeating No. 24 Marcel Granollers in straight sets.
On the women's side of the draw, No. 4 Serena Williams defeated Maria Jose Martinez Sanchez in straight sets to advance to the third round, where she will face Ekaterina Makarova. Her sister, Venus Williams, is scheduled to be in action Thursday night against No. 6 Angelique Kerber. After dropping the first set, No. 2 Agnieszka Radwanska won her second round match over Carla Suarez Navarro, setting up a third-round match with No. 30 Jelena Jankovic.
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