Hamburg - Roger Federer led an unchanged top 10 in the latest ATP tennis rankings issued on Monday. The Swiss Federer has 11,255 points as he ranks ahead of Spain's Rafael Nadal (8,845) and Briton Andy Murray (8,390).
The rankings saw no changes at the top as there were no major tournaments in the past week reserved for Davis Cup ties.
ATP top 10 as of September 21 (previous ranking in parenthesis):
1. (1) Roger Federer, Switzerland, 11,255 points 2. (2) Rafael Nadal, Spain, 8,845 3. (3) Andy Murray, Britain, 8,390 4. (4) Novak Djokovic, Serbia, 7,480 5. (5) Juan Martin del Potro, Argentina, 6,825 6. (6) Andy Roddick, United States, 5,310 7. (7) Jo-Wilfried Tsonga, France, 3,950 8. (8) Nikolay Davydenko, Russia, 3,535 9. (9) Fernando Verdasco, Spain, 3,430 10. (10) Gilles Simon, France, 3,090
