Berlin – Wimbledon champion Novak Djokovic remains top of the latest men's tennis rankings, released by the ATP on Monday.
The Serb has 13,130 points to lead a top 10 which is unchanged from last week.
Spain's Rafael Nadal is second on 12,670 while Wimbledon runner-up Roger Federer is third on 6,070.
Alexandr Dolgopolov of Russia and Marin Cilic of Croatia both moved into the top 20 by gaining four spots to reach 17th and 18th respectively.
ATP top 10 as of July 28 (previous ranking in parenthesis):
1. (1) Novak Djokovic, Serbia, 13,130 points
2. (2) Rafael Nadal, Spain, 12,670
3. (3) Roger Federer, Switzerland, 6,070
4. (4) Stan Wawrinka, Switzerland, 5,770
5. (5) Tomas Berdych, Czech Republic, 4,410
6. (6) David Ferrer, Spain, 4,085
7. (7) Milos Raonic, Canada, 3,920
8. (8) Juan Martin del Potro, Argentina, 3,360
9. (9) Grigor Dimitrov, Bulgaria, 3,270 10.
(10) Andy Murray, Britain, 3,040 – Sapa-dpa