Tennis-Toronto Cup women's singles third round results

Aug 11 (Reuters) - Toronto Cup women's singles third round results on Thursday (prefix denotes seeding, * new result)

 * Serena Williams (U.S.) beat Zheng Jie (China) 4-6 6-3 6-3   
*13-Agnieszka Radwanska (Poland) beat 3-Vera Zvonareva (Russia)
6-4 7-6(4)
  Galina Voskoboeva (Kazakhstan) beat 5-Maria Sharapova (Russia)
6-3 7-5        
Roberta Vinci (Italy) beat Ana Ivanovic (Serbia) 7-6(3) 6-2 
4-Victoria Azarenka (Belarus) beat Maria Jose Martinez Sanchez
(Spain) 6-1 6-2
11-Andrea Petkovic (Germany) beat 7-Petra Kvitova (Czech
Republic) 6-1 6-2    
10-Samantha Stosur (Australia) beat 6-Li Na (China) 6-2 6-4