Updated On: 04 February, 2022 08:09 AM IST | London | AFP
Federer played just 13 matches in 2021. He also underwent two knee surgeries in 2020 when he played only six times

Roger Federer
Roger Federer, 40, believes he will know by “April-May” whether or not he will be able to return to tennis.
The winner of 20 Grand Slam titles has not played since a Wimbledon quarter-final exit at the hands of Poland’s Hubert Hurkacz in July last year before having to undergo knee surgery.