Tennis Tennis Naomi Osaka still atop WTA rankings, Mertens drops two places Belgian Elise Mertens dropped two places to 20th after being knocked out of the first round of the Madrid Open on Sunday. AFP Paris 06 May, 2019 16:21 IST Naomi Osaka retained her place on top of the WTA rankings. - Getty Images AFP Paris 06 May, 2019 16:21 IST 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.WTA rankings - Top 201. Naomi Osaka (JPN) 6151 pts2. Petra Kvitova (CZE) 58353. Simona Halep (ROM) 56824. Angelique Kerber (GER) 52205. Karolina Pliskova (CZE) 51116. Elina Svitolina (UKR) 49217. Kiki Bertens (NED) 47658. Sloane Stephens (USA) 43869. Ashleigh Barty (AUS) 427510. Aryna Sabalenka (BLR) 352011. Serena Williams (USA) 346112. Caroline Wozniacki (DEN) 336213. Anastasija Sevastova (LAT) 318514. Madison Keys (USA) 301015. Anett Kontaveit (EST) 296516. Qiang Wang (CHN) 281517. Julia Goerges (GER) 263018. Belinda Bencic (SUI) 2540 (+1)19. Garbine Muguruza (ESP) 2525 (+1)20. Elise Mertens (BEL) 2360 (-2) Read more stories on Tennis. For more updates, follow Sportstar on :