Andy Murray says he'll know in the next few weeks if he'll need another operation on his hip.
The former world tennis number one hasn't played since November and is not expected to be back on the court before the grass-court season.
Murray believes it could be due to a common side effect of the hip resurfacing procedure he had in January last year:
"It's been unbelievably complex. At the Davis Cup I was diagnosed with this bone bruise on the pubis, which was mild and obviously not a big deal, but they can sort of niggle on if they are not handled properly.
"It didn't really get better. I started rehabbing, I started hitting a few balls, I started running again on the treadmill and stuff to try and build back up.
"The thought was maybe that I had just irritated it and should give it enough time until it's gone. But my pain was not getting better. I was basically like, 'Look, I am not happy with this diagnosis'.
"And because of the hip and the metal in the hip, it is extremely difficult to get a clear diagnosis because the metal on the scan makes it extremely difficult to read them.
"So the concern was then, well, we can't see exactly what is going on in here, is there a problem with the actual prosthesis? Then from there, I had to have a bone scan.
"But there are complications with that because it is normal to have quite high bone activity in the first 14 to 16 months after hip resurfacing, so you can get red herrings, but all of those scans showed that it was clear.
"I started practising again a few days ago. I've been doing some running and just trying to build up to see what happens."
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