Hamburg  - Rafael Nadal stayed well clear of Roger Federer in the men's ATP tennis rankings published Monday.

Switzerland's Federer claimed his first match victory against Spanish rival Nadal since late 2007 in a 6-4, 6-4 win over the world number one Sunday at the Madrid Masters.

The top 10 is largely unchanged, with Nikolay Davydenko of Russia the only new entry at 10. «#»

ATP top 10 as of May 18 (previous ranking in parentheses):

1. (1) Rafael Nadal, Spain, 14,960 points 2. (2) Roger Federer, Switzerland, 10,470 3. (4) Andy Murray, Britain, 9,020 4. (3) Novak Djokovic, Serbia, 8,830 5. (5) Juan Martin del Potro, Argentina, 4,830 6. (6) Andy Roddick, United States, 4,220 7. (7) Gilles Simon, France, 4,050 8. (8) Fernando Verdasco, Spain, 3,830 9. (9) Jo-Wilfried Tsonga, France, 3,430 10. (11) Nikolay Davydenko, Russia, 3,205 «#»(dpa)