Federer No 1 again, Djokovic on the slide

Paris - Rafael Nadal's surprise quarter-final exit at the Madrid Masters has seen the Spaniard replaced as world No 1 by Roger Federer in the latest ATP rankings published on Monday. 

Federer returns to the top spot despite not having played since March. 

Former world No 1 Novak Djokovic slipped six places to 18th after his second round defeat in Madrid, his lowest ranking since October 2006. 

Madrid winner Alexander Zverev remains in third, but the man he beat in Sunday's final, Dominic Thiem, dropped a place to eighth despite knocking out Nadal on his way to facing Zverev. 

Thiem saw off Kevin Anderson in the semi-finals and it is the South African who inherits his seventh spot, the 31-year-old's highest ever ranking. 

The highest mover in the men's charts is Madrid semi-finalist Denis Shapovalov with the Russian teenager jumping 14 rungs to a best ever 29th.

Top 20 in the Latest ATP Tour rankings:

1. Roger Federer (SUI) 8 670

2. Rafael Nadal (ESP) 7 950

3. Alexander Zverev (GER) 6 015

4. Grigor Dimitrov (BUL) 4 870

5. Marin Cilic (CRO) 4 770

6. Juan Martin Del Potro (ARG) 4 540

7. Kevin Anderson (RSA) 3 660

8. Dominic Thiem (AUT) 3 545

9. John Isner (USA) 3 305

10. David Goffin (BEL) 2 930

11. Pablo Carreno (ESP) 2 280

12. Sam Querrey (USA) 2 220

13. Roberto Bautista (ESP) 2 210

14. Jack Sock (USA) 2 155

15. Diego Schwartzman (ARG) 2 130

16. Lucas Pouille (FRA) 1 995

17. Tomas Berdych (CZE) 1 980

18. Novak Djokovic (SRB) 1 905

19. Kyle Edmund (ENG) 1 905

20. Hyeon Chung (KOR) 1 807

Selected

29. Denis Shapovalov (CAN) 1 488