France's Gael Monfils has been forced to pull out of the Olympics as he recovers from a knee injury.
The world number 17 has already missed this year's French Open and Wimbledon with the problem.
The 25-year-old has been replaced by world number 32 Julien Benneteau.
Benneteau recently squandered a two-set lead against Roger Federer in the third round of Wimbledon.
