India's Sania Mirza and Monica Niculescu of Romania went down in the doubles quarterfinals of the $2,000,000 Western and Southern Financial Group Women's Open tennis.

Sania and Niculescu lost 2-6, 5-7 to Victoria Azarenka of Belarus and Maria Kirikenko of Russia in Cincinnati on Friday. The Indo-Romanian pair had stunned Wimbledon champions Vania King and Yaroslava Shvedova of Kazakhstan in the second round.
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Azarenka and Kirilenko now face second seeds Gisela Dulko of Argentina and Flavia Pennetta of Italy in the semifinals.
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