Andy Murray says he is “pain free” after hip surgery but that his chances of playing singles at Wimbledon this year are “less than 50%”.
Murray had hip resurfacing surgery in January – which he said meant there was a “strong possibility” he would not be able to play professionally again.
The three-time Grand Slam champion said it was the only option if he wanted to return to the court competitively.
“The rehab is slow but going well,” the 31-year-old Briton said.
“I want to continue playing, I said that in Australia. The issue is I don’t know whether it’s possible.”
Murray, who said he was “a lot happier” having had the operation, added he is under “no pressure” to resume a career which has also seen him win two Olympic gold medals.
“I have to wait and see,” he told BBC sports editor Dan Roan at Queen’s Club.
“I’m not allowed to do high-intensity movement for the first four months after the surgery and it is only then when I can see if I can compete at any level.
“Whether that is playing top 10, that is unlikely, but getting to the top 50, top 100, might be possible.
“I don’t feel any pressure to come back, I don’t feel pressure to play. If it allows me to play that’s brilliant.”
Murray broke down in tears at the Australian Open in January, saying in his pre-tournament news conference that he planned to retire after this year’s Wimbledon because of the pain in his hip.
He added that the first Grand Slam of 2019 could prove to be the last tournament of his career.
After a gutsy first-round five-set defeat by Spain’s Roberto Bautista Agut, Murray appeared to soften his stance by telling the Melbourne crowd he hoped to see them again next year.
In his post-match news conference he said he had been in pain for “the past 20 months” and wanted the operation to improve his quality of life.
Murray had the resurfacing operation – which keeps more of the damaged bone than a hip replacement, smoothing the ball down and covering it with a metal cap – in London on 28 January.
American doubles player Bob Bryan had the same surgery last year and was back playing again, alongside twin brother Mike, five months later.
No tennis player has competed in singles after having this operation.
“I don’t want to say playing again is highly likely because it hasn’t been done before and I can’t look at any guy and say he’s done that,” Murray added.
“What gives me hope is that in Australia and in the past 18 months, my hip has been in a very bad way and I could compete and win against very good players.”
More to follow.