Andy Murray has revealed recovering from hip surgery has been "harder" than his previous fitness problems.
The 30-year-old former world No.1 only recently returned to the training court as he continues his rehabilitation after going under the knife in Melbourne in January.
Murray will make a late decision on whether to play in the Challenger Tour event in Glasgow starting on April 30, one of two new second-tier tournaments announced by the Lawn Tennis Association last month, partly with the Scot's return in mind.
Murray is expected to return to main ATP Tour action at the Libema Open in the Netherlands in June, the grass-court tournament taking place the week before the championships at Queen's Club.
It is not the first testing experience Murray has endured to work his way to full fitness again, having gone through a back operation in 2013.
"This time has been harder," he told the Washington Post.
"There's been a lot more ups and downs this time. It's been longer and a lot more complex than the back issue.
"I will enjoy it more (returning to action). I think when you go through an injury like this you realise how much you miss playing, how important it is to you.
"I like pressure, I miss that, something that you don't get in day-to-day life, something that I've had as part of my life for, well it's been 13, 14 years since I became a pro. I miss that, I miss the competition.
"There will always be pressure there, but I'll definitely make sure I enjoy it more and make sure I don't get too down with a bad result or a tough loss and not get too high when things are going well.
"You never quite know what's around the corner. I certainly never anticipated something like this, so I certainly won't take anything for granted when I come back."
