The 2010 U.S. Open kicked off in style with the Nike Primetime Knockout at Pier 54 in New York City. Supermodel Bar Refaeli, actor Bradley Cooper and New York Giants defensive lineman Justin Tuck were among those to put their tennis skills to the test.
The event also featured Rafael Nadal, Roger Federer, Maria Sharapova and Serena Williams. The U.S. Open begins today, Aug. 26, and lasts until Sept. 12.
Relive moments from the celebrity/pro kickoff event with the photos below. Vote on your favorites!
Sexy Tennis Photos: Nike Primetime Knockout At Pier 54
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