Paris - Latvia's Ernests Gulbis has broken into the world top 20 for the first time in his career thanks to his defeat of Jo-Wilfried Tsonga in the final of the Marseille Open on Sunday.
The 25-year-old from Riga moved up five places to stand at 18th in the latest rankings.
Top ranked Rafael Nadal consolidated his big lead by winning the ATP tournament in Rio de Janeiro and he is now 4 000 points clear of second-placed Novak Djokovic.
Australian Open winner Stanislas Wawrinka is next best, but the Swiss player is over 5 000 points adrift of Djokovic in third place.
South Africa's Kevin Anderson, who lost in the Delray Beach final at the weekend, remains just outside the top 20 in 21st position.
ATP world rankings:
1. Rafael Nadal (ESP) 14,580 pts
2. Novak Djokovic (SRB) 10,580
3. Stanislas Wawrinka (SUI) 5,560
4. David Ferrer (ESP) 5,370
5. Juan-Martin Del Potro (ARG) 4,960
6. Tomas Berdych (CZE) 4,890
7. Andy Murray (GBR) 4,795
8. Roger Federer (SUI) 4,305
9. Richard Gasquet (FRA) 2,950
10. Jo-Wilfried Tsonga (FRA) 2,785
11. Milos Raonic (CAN) 2,485
12. Tommy Haas (GER) 2,435
13. John Isner (USA) 2,320
14. Fabio Fognini (ITA) 2,260
15. Mikhail Youzhny (RUS) 2,100 (+1)
16. Tommy Robredo (ESP) 2,050 (+1)
17. Nicolas Almagro (ESP) 1,930 (+1)
18. Ernests Gulbis (LAT) 1,788 (+5)
19. Jerzy Janowicz (POl) 1,750
20. Kei Nishikori (JPN) 1,715 (-5)
Other:
21. Kevin Anderson (RSA) 1,685