Men's rankings

ATP singles rankings as of 21 April 2014:

1. Rafael Nadal (Spa)

2. Novak Djokovic (Ser)

3. Stanislas Wawrinka (Swi)

4. Roger Federer (Swi)

5. David Ferrer (Spa)

6. Tomas Berdych (Cze)

7. Juan Martin Del Potro (Arg)

8. Andy Murray (GB)

9. Milos Raonic (Can)

10. John Isner (US)

11. Richard Gasquet (Fra)

12. Jo-Wilfried Tsonga (Fra)

13. Fabio Fognini (Ita)

14. Tommy Haas (Ger)

15. Mikhail Youzhny (Rus)

16. Grigor Dimitrov (Bul)

17. Kei Nishikori (JPN)

18. Tommy Robredo (Spa)

19. Kevin Anderson (SA)

20. Nicolas Almagro (Spa)

Other Britons in top 300:

132. Daniel Evans

153. James Ward

222. Daniel Cox

248. Daniel Smethurst

285. David Rice

292. Kyle Edmund