Roger Federer admitted he is considering withdrawing from the French Open despite reaching the last 16 after a tense four-set victory over Dominik Koepfer in a tie which finished just before 12:45 on Sunday morning. "I don't know if I am going to play," said Federer, who is just two months shy of his 40th birthday and is due to play Italy's Matteo Berrettini in Monday's fourth round. "I have to decide whether to continue playing or not. Is it too risky to keep putting pressure on the knee? Is it a good time to rest?" The 20-time Grand Slam title winner, who underwent two knee surgeries in 2020, and is playing only his third tournament since last year's Australian Open, has always said Wimbledon is his priority this year. dj/mw made the second week in Paris for the 15th time with a knife-edge 7-6 (7/5), 6-7 (3/7), 7-6 (7/4), 7-5 win over the 59th-ranked German. However, I need to decide if I keep on playing or not or is it not too much risk at this moment to keep on pushing or is this just a perfect way to just take a rest