Berlin - Novak Djokovic led the way in an unchanged top 10 of the men's tennis rankings issued on Monday by the ATP.
Djokovic has 12,150 for a huge advantage over long-time rivals Rafael Nadal (8 665) and Roger Federer (8 170).
ATP top 10 as of September 22 (previous ranking in parenthesis):
1. (1) Novak Djokovic, Serbia, 12 150 points
2. (2) Rafael Nadal, Spain, 8 665
3. (3) Roger Federer, Switzerland, 8 170
4. (4) Stan Wawrinka, Switzerland, 5 690
5. (5) David Ferrer, Spain, 4 495
6. (6) Milos Raonic, Canada, 4 200
7. (7) Tomas Berdych, Czech Republic, 4 175
8. (8) Kei Nishikori, Japan, 3 865
9. (9) Marin Cilic, Croatia, 3 845
10. (10) Grigor Dimitrov, Bulgaria, 3 710