Berlin - Serena Williams retained first place in the women's tennis rankings issued on Monday by the WTA while Simona Halep moved past injured Li Na into a career-high second place.
Williams, a semi-final loser last week in Montreal against her sister Venus Williams, tops the bill with 9 150 points ahead of Halep (6 785) and Li (6 565).
Halep has not played in several weeks but Li, who is nursing a knee injury, is losing points from last year in the rankings which take into account 52 weeks.
WTA Top 10:
1. Serena Williams, United States, 9 150 points
2. Simona Halep, Romania, 6 785
3. Li Na, China, 6 565
4. Petra Kvitova, Czech Republic, 5 930
5. Agnieszka Radwanska, Poland, 5 625
6. Maria Sharapova, Russia, 4 986
7. Angelique Kerber, Germany, 4 570
8. Eugenie Bouchard, Canada, 4 450
9. Jelena Jankovic, Serbia, 3 900
10. Victoria Azarenka, Belarus, 3 683