Women's tennis rankings

WTA singles rankings as of 23 February 2015

1. Serena Williams (US)

2. Maria Sharapova (Rus)

3. Simona Halep (Rom)

4. Petra Kvitova (Cze)

5. Caroline Wozniacki (Den)

6. Ana Ivanovic (Ser)

7. Eugenie Bouchard (Can)

8. Agnieszka Radwanska (Pol)

9. Ekaterina Makarova (Rus)

10. Andrea Petkovic (Ger)

11. Angelique Kerber (Ger)

12. Sara Errani (Ita)

13. Karolina Pliskova (Cze)

14. Carla Suarez Navarro (Spa)

15. Lucie Safarova (Cze)

16. Flavia Pennetta (Ita)

17. Venus Williams (US)

18. Dominika Cibulkova (Slo)

19. Madison Keys (US)

20. Garbine Muguruza (Spa)

Britons in top 300:

42. Heather Watson

148. Johanna Konta

168. Naomi Broady

283. Katy Dunne

296. Emily Webley-Smith