Urszula Radwanska advances
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Radwanska, the younger sister of third-ranked Agnieszka, used a strong serve to beat the 394th-ranked Diatchenko.
She was joined in the last eight by fifth-seeded Alexandra Cadantu of Romania, who beat Sabina Sharipova of Uzbekistan 1-6, 6-3, 6-3. Sixth-seeded Bojana Jovanovski converted her fourth match point to beat Eleni Daniilidou of Greece 6-3, 6-7 (8), 6-3, while eighth-seeded Galina Voskoboeva of Kazakhstan ousted Anna Chakvetadze of Russia 6-1, 6-3.
Copyright 2012 by The Associated Press
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