Rafael Nadal reacts after winning the second set against Gael Monfils at the U.S. Open in New York on Tuesday, September 8, 2009. Photo: AP
Andy Murray reacts to a missed point against Marin Cilic at the U.S. Open in New York. Photo: AP
Kim Clijsters celebrates her victory over Li Na during the quarterfinals of the U.S. Open in New York. Photo: AP
Flavia Pennetta in action at the U.S. Open in New York. Photo: AP
Serena Williams celebrates after beating Flavia Pennetta at the U.S. Open in New York. Photo: AP
Fernando Gonzalez returns to Jo-Wilfried Tsonga during the U.S. Open in New York. Photo: AP
Jo-Wilfried Tsonga in action at the U.S. Open in New York. Photo: AP
Caroline Wozniacki signs autographs before her training session for the U.S. Open in New York. Photo: AP
Juan Martin del Potro celebrates his victory over Juan Carlos Ferrero at the U.S. Open in New York. Photo: AP
Marin Cilic reacts after defeating Andy Murray at the U.S. Open in New York. Photo: AP