UPDATE 1-Tennis-WTA Championships women's singles semifinal results

Sat Oct 27, 2012 4:21pm BST

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Oct 27 (Infostrada Sports) - Results from the WTA Championships Women's Singles Semifinal matches on Saturday 
2-Maria Sharapova (Russia) beat 1-Victoria Azarenka (Belarus) 6-4 6-2 
3-Serena Williams (U.S.) beat 4-Agnieszka Radwanska (Poland) 6-2 6-1
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