WTA Tour Rankings 2011 (Last Updated : 31 January)

Women's Singles

1. Caroline Wozniacki (DEN)

2. (+1) Kim Clijsters (BEL)

3. (-1) Vera Zvonareva (RUS)

4. (+3) Francesca Schiavone (ITA)

5. (+1) Samantha Stosur (AUS)

6. (-1) Venus Williams (USA)

7. (+4) Li Na (CHN)

8. Jelena Jankovic (SRB)

9. Victoria Azarenka (BLR)

10. (+4) Agnieszka Radwanska (POL)

11. (+1) Shahar Peer (ISR)

12. (-8) Serena Williams (USA)

13. (+3) Maria Sharapova (RUS)

14. (+4) Anastasia Pavlyuchenkova (RUS)

15. (+2) Marion Bartoli (FRA)

16. (+9) Flavia Pennetta (ITA)

17. (+4) Kaia Kanepi (EST)

18. (+10) Petra Kvitova (CZE)

19. (+1) Ana Ivanovic (SRB)

20. (-5) Nadia Petrova (RUS)

355. (+2) Lavinia Tananta (INA)

433. (+7) Jessy Rompies (INA)

456. (+3) Ayu Fani Damayanti (INA)

522. (-1) Sandy Gumulya (INA)

840. Voni Darlina (INA)

887. (+3) Cynthia Melita (INA)

892. (+3) Grace Sari Ysidora (INA)

962. (-2) Beatrice Gumulya (INA)

1074. (-8) Aldila Sutjiadi (INA)

Women's Doubles

1. Gisela Dulko (ARG)

2. Flavia Pennetta (ITA)

3. (+2) Kveta Peschke (CZE)

3. (+3) Katarina Srebotnik (SLO)

5. (-1) Vania King (USA)

6. (-3) Liezel Huber (USA)

7. Yaroslava Shvedova (KAZ)

8. (+4) Nadia Petrova (RUS)

9. (+5) Maria Kirilenko (RUS)

10. (-2) Lisa Raymond (USA)

179. (+1) Yayuk Basuki (INA)

266. Jessy Rompies (INA)

275. (-1) Lavinia Tananta (INA)

281. Ayu Fani Damayanti (INA)

702. (-2) Sandy Gumulya (INA)

820. (-5) Bella Destriana (INA)

820. (-5) Cynthia Melita (INA)

996. (-2) Beatrice Gumulya (INA)

1101. (-8) Laili Rahmawati Ulfa (INA)

1207. (-12) Grace Sari Ysidora (INA)

Source : WTA Tour

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

Preview : European Mixed Team Championships 2011

Group 1

Denmark, Israel, Italy, Czech Republic

Group 2

Germany, Latvia, Estonia, Belgium

Group 3

England, Slovenia, Austria, Ireland

Group 4

Russia, Wales, Cyprus, Sweden

Group 5

Netherlands, Iceland, Lithuania, Switzerland

Group 6

France, Slovakia, Spain, Scotland

Group 7

Ukraine, Hungary, Finland, Bulgaria

Group 8

Poland, Portugal, Belarus, Croatia

Source : European Mixed Team Championship 2011 Website