Paris - Japan's Naomi Osaka remained atop of WTA rankings released on Monday, ahead of Czech Petra Kvitova and Romanian Simona Halep.
The largely unchanged top 20 saw Belgian Elise Mertens drop two places to 20th after being knocked out of the first round of the Madrid Open on Sunday by Slovakia's Anna Karolina Schmiedlova, 103rd in the world.
Top 20 in the latest WTA Tour rankings:
1. Naomi Osaka (JPN) 6 151
2. Petra Kvitova (CZE) 5 835
3. Simona Halep (ROM) 5 682
4. Angelique Kerber (GER) 5 220
5. Karolina Pliskova (CZE) 5 111
6. Elina Svitolina (UKR) 4 921
7. Kiki Bertens (NED) 4 765
8. Sloane Stephens (USA) 4 386
9. Ashleigh Barty (AUS) 4 275
10. Aryna Sabalenka (BLR) 3 520
11. Serena Williams (USA) 3 461
12. Caroline Wozniacki (DEN) 3 362
13. Anastasija Sevastova (LAT) 3 185
14. Madison Keys (USA) 3 010
15. Anett Kontaveit (EST) 2 965
16. Qiang Wang (CHN) 2 815
17. Julia Goerges (GER) 2 630
18. Belinda Bencic (SUI) 2 540
19. Garbine Muguruza (ESP) 2525 (+1)
20. Elise Mertens (BEL) 2360 (-2)