Paris - Two-time Wimbledon winner Andy Murray has lost his status as Britain's number one for the first time since 2006 after he was overtaken by Kyle Edmund in the ATP rankings released on Monday.
Edmund has moved up to 24th place as he reaps the benefit of reaching the Australian Open semi-finals, while former world number one Murray, out injured since January and recovering from a hip operation, drops eight places to 29th.
Juan Martin del Potro moves up one place to eighth after he beat big-serving Kevin Anderson 6-4, 6-4 to win the Mexican Open on Sunday.
Latest Top 20 in the ATP Tour rankings:
1. Roger Federer (SUI) 10 060 pts
2. Rafael Nadal (ESP) 9 460
3. Marin Cilic (CRO) 4 870
4. Grigor Dimitrov (BUL) 4 635
5. Alexander Zverev (GER) 4 540
6. Dominic Thiem (AUT) 3 810
7. David Goffin (BEL) 3 280
8. Juan Martn Del Potro (ARG) 3 200
9. Kevin Anderson (RSA) 3 080
10. Jack Sock (USA) 2 650
11. Stan Wawrinka (SUI) 2 475
12. Lucas Pouille (FRA) 2 455
13. Novak Djokovic (SRB) 2 380
14. Pablo Carreo (ESP) 2 315
15. Toms Berdych (CZE) 2 275
16. Roberto Bautista (ESP) 2 255
17. Diego Schwartzman (ARG) 2 220
18. John Isner (USA) 2 205
19. Fabio Fognini (ITA) 2 190
20. Nick Kyrgios (AUS) 2 125
Selected:
24. Kyle Edmund (GBR) 1 642
29. Andy Murray (GBR) 1 460