Swiss legend Roger Federer will not be taking part in this year's French Open after having knee surgery. As per details, the 20-time Grand Slam champion had an arthroscopic surgery on his right knee which had been "bothering him for a little while" - in Switzerland on Wednesday. The 38-year-old, who won his only title at Roland Garros in 2009, said doctors were "very confident of a full recovery". "My right knee has been bothering me for a little while. I hoped it would go away, but after an examination, and discussion with my team, I decided to have arthroscopic surgery in Switzerland yesterday,” Sky Sports quoted Federer. "After the procedure, the doctors confirmed that it was the right thing to have done and are very confident of a full recovery. "As a result, I will unfortunately have to miss Dubai, Indian Wells, Bogota, Miami and the French Open. "I am grateful for everyone's support. I can't wait to be back playing again soon, see you on the grass."