Roger Federer found a way to beat Germany's Dominik Koepfer in the French Open, despite being far from his best in a scrappy third-round match.
Federer lacked fluency and trust in his game before coming through to win 7-6 (7-5) 6-7 (3-7) 7-6 (7-4) 7-5 at a near-empty Roland Garros.
The Swiss 20-time Grand Slam champion clinched victory after three hours and 35 minutes.
He will play Italian ninth seed Matteo Berrettini in the last 16.
[Source: BBC]
