Paris: World number one Serena Williams retains her place atop in the latest women's single tennis rankings while China's Li Na stays firm in second place.
WTA rankings
1. Serena Williams (USA) 12.375 pts
2. Li Na (CHN) 7585
3. Agnieszka Radwanska (POL) 5980
4. Victoria Azarenka (BLR) 5441
5. Simona Halep (ROM) 4695
6. Petra Kvitova (CZE) 4295
7. Angelique Kerber (GER) 4110
8. Jelena Jankovic (SRB) 4010
9. Maria Sharapova (RUS) 3961
10. Dominika Cibulkova (SVK) 3830
11. Sara Errani (ITA) 3645
12. Ana Ivanovic (SRB) 3280
13. Flavia Pennetta (ITA) 3270
14. Sabine Lisicki (GER) 2735
15. Caroline Wozniacki (DEN) 2730
16. Carla Suarez Navarro (ESP) 2700
17. Sloane Stephens (USA) 2550
18. Eugénie Bouchard (CAN) 2498
19. Samantha Stosur (AUS) 2485
20. Roberta Vinci (ITA) 2435
