[Rusty Backhand]

Maria Sharapova is on her way to becoming No. 1 in the world. She'll have to put the celebration on hold for another 10 days, though. Sharapova withdrew from the JPMorgan Chase Open because of a strained chest muscle Friday, postponing her move from No. 2 into the top spot. The tournament's top seed was scheduled to play ninth-seeded Daniela Hantuchova of Slovakia in an evening quarterfinal match.

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