Kim Clijsters and Li Na met at the net after Clijsters beat the Chinese No.1 to reach the semifinals.
Serena Williams at an autograph signing promoting her recently released book, On The Line.
Nicole Kidman and Keith Urban were in the stands for Tuesday's night session in New York.
Serena Williams and Flavia Pennetta met at the net after Williams won their quarterfinal, 64 63.
Ekaterina Makarova with The Corporate Source, a member of the YAI National Institute for People with Disabilities.
Venus Williams was in the stands for her sister's quarterfinal match against Flavia Pennetta.
Kateryna Bondarenko showed her frustration in her quarterfinal loss to Yanina Wickmayer.
A passionate Yanina Wickmayer reached the semifinals with a 75 64 win over Kateryna Bondarenko.
Liezel Huber and Cara Black posed at the Unisphere as they qualified for the Sony Ericsson Championships.
Melanie Oudin's shoes glimmered under the lights during her quarterfinal Wednesday.
Melanie Oudin's family and friends cheered her on Wednesday night as she played Caroline Wozniacki.
Award-winning actor Alec Baldwin was in the house for Wednesday's night session at the US Open.
Caroline Wozniacki flashed her ever-present smile after reaching her first Grand Slam semifinal Wednesday.
Melanie Oudin and Caroline Wozniacki met at the net after Wozniacki won their quarterfinal, 62 62.
Melanie Oudin waved goodbye to the crowd after her Cinderella run ended in the quarterfinals.