ROGER FEDERER is a Wimbledon doubt after undergoing serious knee surgery.
The Swiss superstar has revealed he underwent arthroscopic surgery in Switzerland on Wednesday.
The 38-year-old, who lost to Novak Djokovic in the Australian Open semi-finals last month, will now be out for at least three months.
He will miss events in North and South America this Spring as well as the French Open in Paris, which takes place between May 24 and June 7.
The 20-time Grand Slam champion remains confident he will be fit for the start of the grass-court season this summer.
Yet he still faces a race-against-time to be ready for Wimbledon on June 29.
In a Twitter post, Federer said: “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.
“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!”
Federer has won a record eight men’s singles titles at SW19 and wasted two match points in last year’s epic final defeat to Djokovic.
