Paris - Rafael Nadal's Rogers Cup win in Montreal at the weekend marked a significant step for the Spaniard as he prepares for the US Open but it wasn't enough to topple Novak Djokovic at the top of the ATP rankings, released on Monday.
Nadal, who will be vying for a fourth title at Flushing Meadows, was too strong for Daniil Medvedev in Sunday's final, seeing off the Russian 6-3 6-0 to claim his 35th Masters title.
Roger Federer and Dominic Thiem stay third and fourth respectively.
Stefanos Tsitsipas, who entered the top five for the first time last week, drops two places and is leapfrogged by Kei Nishikori and Alexander Zverev.
Medvedev's reward for his appearance in Sunday's final was a one-place climb to eight.
Top 20 in the latest ATP Tour rankings:
1. Novak Djokovic (SRB) 12,325
2. Rafael Nadal (ESP) 7,945
3. Roger Federer (SUI) 7,460
4. Dominic Thiem (AUT) 4,925
5. Kei Nishikori (JPN) 4,040
6. Alexander Zverev (GER) 4,005
7. Stefanos Tsitsipas (GRE) 3,455
8. Daniil Medvedev (RUS) 3,230
9. Karen Khachanov (RUS) 2,890
10. Fabio Fognini (ITA) 2,555
11. Roberto Bautista (ESP) 2,395
12. Juan Martin Del Potro (ARG) 2,230
13. Borna Coric (CRO) 2,195
14. Kevin Anderson (RSA) 2,140
15. Gael Monfils (FRA) 2,130
16. John Isner (USA) 2,040
17. Nikoloz Basilashvili (GEO) 2,020
18. Marin Cilic (CRO) 1,940
19. David Goffin (BEL) 1,815
20. Milos Raonic (CAN) 1,810
23. Stan Wawrinka (SUI) 1,670
27. Nick Kyrgios (AUS) 1,475
100. Lloyd Harris (RSA) 542