Li stunned by 53rd-ranked teen Halep (AP)

[ASFN Admin]

French Open champion Li Na was upset in the first round of the U.S. Open by 53rd-ranked teenager Simona Halep. Li, seeded sixth, lost 6-2, 7-5 on Tuesday. The second round at Flushing Meadows will be without all three of this year's major champions. Australian Open winner Kim Clijsters withdrew because of injury, while Wimbledon champ Petra Kvitova lost Monday.

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