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No. 1 CAROLINE WOZNIACKI Age: 20 Best U.S.
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No. 1 CAROLINE WOZNIACKI
Age: 20
Best U.S. Open finish: Runner-up, 2009
Quick point: Last year's runner-up to Kim Clijsters, the Danish star has reached four finals on tour this year, more than any other player except Maria Sharapova. She has struggled against other top players, though, going 8-26 in her career against players ranked No. 3 or higher.(Credit: MCT)

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2010 U.S. Open top women's contenders

Take a look at the top women's seeds at the U.S. Open, along with a couple of players outside the top 10 who could make a run at the title.