Andy Murray is confident he is not harming his chances of success at Wimbledon and the Olympics by playing on in the French Open.
The world number four has been troubled by a niggling back problem since the end of last year and woke up on Thursday with a back spasm that almost ended his Roland Garros campaign in the second round.
Murray admitted he was only a few points from quitting against Jarkko Nieminen before his back loosened and the Finn tightened up, enabling the 25-year-old to come through 1-6 6-4 6-1 6-2.
With the Olympics making the summer schedule more packed than usual - three grand slams and the Games are all crammed into less than four months - there will be little time for rest and recuperation.
Boris Becker suggested before the French Open Murray should pull out to ensure he is fully fit for the grass-court season, an idea he gave short shrift to, and that remains the Scot's stance.
He said of his back spasm: "It's a completely different thing to what I had beforehand. So if it was the same thing, then, yes, I would be really, really concerned about Wimbledon and obviously the Olympics.
"But so long as what I'm getting told by doctors and the physios is, if it is just a muscle spasm, then that's nothing to be overly concerned by, (then I will play).
"But when they happen they are very difficult to shake off, especially when it's early morning. It takes a bit of time for your body to warm up and stuff. So I'm not doing any permanent damage by finishing a match like I did."
The Scot practised for almost an hour on Friday at Roland Garros and, although it was fairly gentle, he did look to be moving better and was able to push into the court on his serve.
Roland Garros and Murray dramas certainly seem to go together. Last year he twisted his ankle in the third round, broke his tooth eating a baguette, fought back from two sets to love down in round four before eventually losing to Rafael Nadal in the semi-finals.
The Scot is taking some comfort from having fought through it all before, saying: "I think if you've been in physical pain before (that helps). The match in the third round, I wasn't playing great. I was barely moving on the court, and my opponent got nervous. I was just swinging and made some shots.
"That helped. And then I was two sets to love down in the next round not really moving and then I just started to feel a little bit better.
"So I guess past experience probably helps but this was different to last year, because I could barely put a serve in the court. I was serving at 60mph sometimes."
The draw has been reasonably kind to Murray, at least until the fourth round, and on Saturday he will take on Colombian Santiago Giraldo, a player he beat on clay in Barcelona earlier this year for the loss of only three games.
The world number 50 knocked out Australian teenager Bernard Tomic in straight sets, though, and will be ready for whichever Murray steps on court.
Giraldo said: "I will be prepared for a very tough match. I don't know the situation with Andy's back but he won so he can play.
"I can compete with him on any surface, especially on clay, I know that I have more chance. I'm playing so good and I'm feeling very well, so if he has problems it will be tough for him to play five sets."
The 24-year-old, who is good friends with Murray's Venezuelan hitting partner Dani Vallverdu, is also confident he can give the fourth seed much more of a match than in Barcelona.
"I didn't play a good match, I lost easily in the third round," he said. "But this is another match and I can play much better. It's different conditions here. I'm happy with my results and I'm feeling good."
