ATP World Tour Rankings 2011 (Last Updated : 31 January)

Men's Singles

1. Rafael Nadal (ESP)

2. Roger Federer (SUI)

3. Novak Djokovic (SRB)

4. Robin Soderling (SWE)

5. Andy Murray (GBR)

6. (+1) David Ferrer (ESP)

7. (-1) Tomas Berdych (CZE)

8. Andy Roddick (USA)

9. Fernando Verdasco (ESP)

10. (+1) Jurgen Melzer (AUT)

11. (-1) Mikhail Youzhny (RUS)

12. Gael Monfils (FRA)

13. (+1) Nicolas Almagro (ESP)

14. (+5) Stanislas Wawrinka (SUI)

15. (+1) Ivan Ljubicic (CRO)

16. (+1) Mardy Fish (USA)

17. (+1) Sam Querrey (USA)

18. (-5) Jo-Wilfried Tsonga (FRA)

19. (+2) David Nalbandian (ARG)

20. (-5) Marin Cilic (CRO)

637. (-1) Christopher Rungkat (INA)

1150. (-4) Elbert Sie (INA)

1302. (-5) Sunu-Wahyu Trijati (INA)

1309. (-6) Ketut-Nesa Arta (INA)

Men's Doubles

1. Bob Bryan/Mike Bryan (USA/USA)

2. Mahesh Bhupathi/Leander Paes (IND/IND)

3. Eric Butorac/Jean-Julien Rojer (USA/AHO)

3. Max Mirnyi/Daniel Nestor (BLR/CAN)

5. Lukas Dlouhy/Paul Hanley (CZE/AUS)

6. Marcel Granollers/Tommy Robredo (ESP/ESP)

7. Lukasz Kubot/Oliver Marach (POL/AUT)

8. Michael Llodra/Nenad Zimonjic (FRA/SRB)

8. Jurgen Melzer/Philipp Petzschner (AUT/GER)

10. Mariusz Fyrstenberg/Marcin Matkowski (POL/POL)

Source : ATP World Tour