Paris - Lucas Pouille climbed into the ATP Tour's Top 20 on the back of his weekend success in Vienna as Rafael Nadal targets the end of year number one spot.
Pouille was the biggest mover in the latest rankings released on Monday with the Frenchman up seven places into 18th after his 6-1, 6-4 defeat of compatriot Jo-Wilfried Tsonga in Sunday's final in Austria.
Nadal heads an unchanged top three from Roger Federer and Andy Murray.
Federer won his eighth Swiss Indoors title in Basel on Sunday then announced he was missing this week's Paris Masters to prepare for the end of season World Tour Finals in London.
The Swiss legend's absence from Paris means Nadal can guarantee ending the year top of the charts by winning his opening second round match in Paris.
The Spaniard will open his campaign at the Bercy arena against either German serve-and-volleyer Mischa Zverev or Hyeon Chung, the promising South Korean Hyeon Chung.
Latest ATP Tour rankings:
1. Rafael Nadal (ESP) 10 465
2. Roger Federer (SUI) 9 005
3. Andy Murray (GBR) 4 790
4. Alexander Zverev (GER) 4 400
5. Marin Cilic (CRO) 4 185
6. Dominic Thiem (AUT) 3 935
7. Novak Djokovic (SRB) 3 765
8. Grigor Dimitrov (BUL) 3 650
9. Stan Wawrinka (SUI) 3 360
10. David Goffin (BEL) 2 975
11. Pablo Carreño (ESP) 2 650
12. Milos Raonic (CAN) 2 555
13. Sam Querrey (USA) 2 525
14. John Isner (USA) 2 505
15. Jo-Wilfried Tsonga (FRA) 2 490
16. Kevin Anderson (RSA) 2 470
17. Juan Martín Del Potro (ARG) 2 435
18. Lucas Pouille (FRA) 2 235
19. Tomas Berdych (CZE) 2 230
20. Kei Nishikori (JPN) 2 175