Roger Federer has revealed he is considering possibly withdrawing from Roland Garros after a grueling third round encounter with Dominik Koepfer.
Federer won the four set match 7-6, 6-7, 7-6, 7-5 which was played in the night session in front of an empty stadium and didn't finish until the early hours of Sunday morning.
After the match, Federer, who will soon turn 40, was visibly tired and said that he was surprised how his body had coped with the three and a half hour match, just two days after another four set match with Marin Cilic.
Now, Eurosport is reporting that the 20-time Grand Slam champion has admitted that he and his team need to assess whether its worth continuing in the tournament, or whether he should now rest and recuperate before grass season.
"I mean, every match here or at Geneva I have to reassess the situation after the match and see how the knee feels the next morning," Federer said.
"So from that standpoint for me it's always like that. There is no difference after a match like this, but maybe even more so after a match like this that has been long."
The match with Keopfer lasted three hours, thirty six minutes and included three tense end of set tie-breakers, something that Federer admitted he could never have fully prepared for
"Like I explained before, I have not been through three-and-a-half-hour battles in practice either.
"We go through these matches, we analyse them highly and look on what's next. We will do the same here on Sunday, because I need to decide if I keep on playing or not.
"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?"
If Federer continues at Roland Garros he will face world number nine Matteo Berrettini in the fourth round.
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