MADRID (AP) -- Serena Williams and Maria Sharapova will play for the No. 1 ranking and the Madrid Open title after winning semifinals in straight sets Saturday. The top-ranked Williams will have a chance to win her 50th title after beating Sara Errani of Italy 7-5, 6-2. No. 2 Sharapova got her 500th win at all levels after defeating Ana Ivanovic 6-4, 6-3.
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