Paris - Victoria Azarenka of Belarus stayed top of the WTA world rankings on Monday ahead of Maria Sharapova and Agnieszka Radwanska.
With none of the top players in action, US Open winner Serena Williams, widely regarded as the best player in the world, remained in fourth place.
Croatia's Donna Vekic, who at 16 became the youngest WTA finalist since 2006 at Tashkent, jumped 62 places to stand at 121st.
WTA top 20
1. Victoria Azarenka (BLR) 10 265 pts2. Maria Sharapova (RUS) 8 435
3. Agnieszka Radwanska (POL) 8 295
4. Serena Williams (USA) 7 900
5. Petra Kvitova (CZE) 6 690
6. Angelique Kerber (GER) 5 085
7. Sara Errani (ITA) 4 755
8. Li Na (CHN) 4 526
9. Samantha Stosur (AUS) 4 200
10. Marion Bartoli (FRA) 3 800
11. Caroline Wozniacki (DEN) 3 440
12. Ana Ivanovic (SRB) 3 200
13. Dominika Cibulkova (SVK) 3 005
14. Maria Kirilenko (RUS) 2 935
15. Roberta Vinci (ITA) 2 425
16. Kaia Kanepi (EST) 2 344
17. Lucie Safarova (CZE) 2 210
18. Nadia Petrova (RUS) 2 005
19. Vera Zvonareva (RUS) 1 875
20. Julia Goerges (GER) 1 815
ATP World Tour:
1. Roger Federer (SWI) 11 805 points
2. Novak Djokovic (SRB) 10 470
3. Andy Murray (SCO) 8 570
4. Rafael Nadal (ESP) 7 385
5. David Ferrer (ESP) 5 960
6. Tomas Berdych (CZE) 4 965
7. Jo-Wilfried Tsonga (FRA) 4 520
8. (Juan Martin Del Potro (ARG) 3 850
9. Janko Tipsarevic (SRB) 3 285
10. John Isner (USA) 2 610
11. Juan Monaco (ARG) 2 565
12. Nicolas Almagro (ESP) 2 515
13. Marin Cilic (CRO) 2 455
14. Richard Gasquet (FRA) 2 165
15. Milos Raonic (CAN) 2 090
16. Stanislas Wawrinka (SWI) 1 865
17. Kei Nishikori (JPN) 1 860
18. Philipp Kohlschreiber (GER) 1 855
19. Alexandr Dolgopolov (UKR) 1 815
20. Gilles Simon (FRA) 1 800