Djokovic clear at top

Berlin - Novak Djokovic stays well clear at the top of the men's ATP tennis rankings released Monday as he attempts to win the French Open for the first time.

Reigning French Open champion and former number one Rafael Nadal remains fourth behind the injured Andy Murray and Roger Federer.

Switzerland's Stanislas Wawrinka returns in 10th spot in place of Serbia's Janko Tipsarevic in the only change in the leading 10.

ATP top 10 as of May 27 (previous ranking in parenthesis):

1. (1) Novak Djokovic, Serbia, 12 310 points

2. (2) Andy Murray, Britain, 8 670

3. (3) Roger Federer , Switzerland, 8 000

4. (4) Rafael Nadal, Spain, 6 895

5. (5) David Ferrer, Spain, 6 740

6. (6) Tomas Berdych, Czech Republic, 4 685

7. (7) Juan Martin del Potro , Argentina, 4 320

8. (8) Jo-Wilfried Tsonga, France, 3 795

9. (9) Richard Gasquet, France, 3 090

10. (11) Stanislaw Wawrinka, Switzerland, 2 630