Paris - Former US Open champion Juan Martin Del Potro climbed two places to sixth in the ATP rankings released on Monday after he defeated Roger Federer in the Indian Wells final.
The 29-year-old handed Federer his first defeat of 2018 with a 6-4, 6-7 (8/10), 7-6 (7/2) victory on Sunday, extending his own win streak to 11 matches including a title run earlier this month at Acapulco.
Federer himself reclaimed top spot just a month ago and remains marginally ahead of his eternal Spanish rival Rafael Nadal, who missed the American tournament with a leg injury.
Top 20 in the latest ATP rankings:
1. Roger Federer (SUI) 9 660
2. Rafael Nadal (ESP) 9 370
3. Marin Cilic (CRO) 4 905
4. Grigor Dimitrov (BUL) 4 600
5. Alexander Zverev (GER) 4 505
6. Juan Martin Del Potro (ARG) 4 155
7. Dominic Thiem (AUT) 3 675
8. Kevin Anderson (RSA) 3 235
9. David Goffin (BEL) 3 190
10. Lucas Pouille (FRA) 2 420
11. Jack Sock (USA) 2 335
12. Novak Djokovic (SRB) 2 300
13. Tomas Berdych (CZE) 2 275
14. Sam Querrey (USA) 2 265
15. Roberto Bautista (ESP) 2 255
16. Diego Schwartzman (ARG) 2 220
17. John Isner (USA) 2 170
18. Fabio Fognini (ITA) 2 155
19. Pablo Carreno (ESP) 2 045
20. Nick Kyrgios (AUS) 1 945