Hamburg - Roger Federer stays top of the ATP men's tennis rankings released Monday, with little change in the leading 10. Switzerland's Federer, who has been number one since the beginning of February 2004, leads Rafael Nadal of Spain by 970 points, with Novak Djokovic of Serbia remaining third.
The only change in the top 10 saw Richard Gasquet of France move up a place to ninth, with Tomas Berdych of Czech Republic slipping back one place to 10th.
ATP top 10 as of April 21 (previous ranking in brackets):
1. (1) Roger Federer, Switzerland, 6,425 points; 2. (2) Rafael Nadal, Spain, 5,455; 3. (3) Novak Djokovic, Serbia, 4,725; 4. (4) Nikolay Davydenko, Russia, 3,290; 5. (5) David Ferrer, Spain, 2,620; 6. (6) Andy Roddick, United States, 2,320; 7. (7) David Nalbandian, Argentina, 2,035; 8. (8) James Blake, United States, 2,020; 9. (10) Richard Gasquet, France, 1,755;10. (9) Tomas Berdych, Czech Republic, 1,690.