at the Union Buildings in Pretoria
Berlin – Wimbledon champion Roger Federer stayed top of the men's tennis rankings released by the ATP Monday.
The 31-year-old Swiss, who was beaten by Britain's Andy Murray in Sunday's Olympic final, remains on 11,435 points narrowly ahead of Serbia's Novak Djokovic (11,270), who Sunday claimed his third title of the season at the Toronto Masters.
Spain's Rafael Nadal remains third with Olympic gold medallist Murray fourth and Spain's David Ferrer fifth.
The only changes in the top 10 see Janko Tipsarevic of Serbia gain a place to eighth, while Juan Martin del Potro of Argentina
drops to ninth and John Isner of the United States comes in at 10.
ATP top 10 as of August 13 (previous ranking in parenthesis):
1. (1) Roger Federer, Switzerland, 11,435 points
2. (2) Novak Djokovic, Serbia, 11,270
3. (3) Rafael Nadal, Spain, 8,895
4. (4) Andy Murray, Britain, 8,200
5. (5) David Ferrer, Spain, 5,455
6. (6) Jo-Wilfried Tsonga, France, 4,880
7. (7) Tomas Berdych, Czech Republic, 4,425
8. (8) Janko Tipsarevic, Serbia, 3,320
9. (9) Juan Martin del Potro, Argentina, 3,305
10. (10) John Isner, United States, 2,890 – Sapa-dpa