MASON, Ohio, Aug. 15 (UPI) -- Russian Nadia Petrova scored a one-hour, straight-set victory Friday to reach the semifinals of the Western and Southern Financial Group Women's Open in Ohio.
Petrova breezed to a 6-2, 6-3 win over Lilia Osterloh, an American wild card entry, setting up a semifinal battle with countrywoman Maria Kirilenko.