Maria Sharapova of Russia serves the ball to Magdalena Rybarikova of Slovakia during a Mexican Tennis Open quarterfinal match in Acapulco, Mexico, Thursday, Feb. 26, 2015. (AP Photo/Christian Palma)

Associated Press - ACAPULCO, Mexico (AP) — Top-seeded Maria Sharapova of Russia beat Magdalena Rybarikova of Slovakia 6-1, 4-6, 6-2 on Thursday night to reach the Mexico Open semifinals.

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