Osaka: Top-seeded Samantha Stosur advanced to the quarterfinals of the Japan Open by beating Virginie Razzano of France 1-6, 6-2, 6-4.
Stosur, the 2011 U.S. Open champion, rallied after having her serve broken three times in the first set at the Utsubo Tennis Center. Razzano had 10 double-faults.
The Australian will next face Jamie Hampton in the quarterfinals. The American defeated wild-card Tamarine Tanasugarn of Thailand 7-5, 7-5.