"I've had serious problems with the back, I had to get some anti-inflammatories last week in Hamburg due to the back pain," Federer said after his shock loss to Daniel Brands as 6-3, 6-4 in the second round of Gstaad Open.
"My back felt ok enough, but not enough to play at 100 percent. I knew coming into the match that it would be a tough one. I didn't decide to play until after the warm-up in the afternoon, that's what a close call it was. I thought I had a chance to win at least one round."
"Some members of the team thought I shouldn't play. I'm relieved I played more or less correctly without making it worse. It was so tough to play and move out there today. I'll just have to take treatment and see how it all goes."
"I’m still happy that I came to Gstaad this week. It was great being back here and the crowd gave me a fantastic welcome."
His first US Open build-up event, the Montreal Masters from August 5, could now be in doubt.
"I will have to do a lot of exercises and see how it all feels. My main priority now is to fix my back. I would love to be able to train at 100 percent," said the former world number one.
"I'll have to see if the rehab is enough to let me play in Montreal. If it is, I'll go; if not, then it gives me another week."
"I will give myself three, four days time and will discuss with the team. We'll take it from there," Roger added in regard to his participation in Canada.
Date: 25th July 2013
