Andy Murray admitted he is considering surgery after an ongoing hip problem forced him to delay his long-awaited comeback and pull out of this week's Brisbane International.
The former world No. 1 has not played competitively since last year's Wimbledon, and this latest blow could also force him to miss the Australian Open later this month.
The 30-year-old posted a lengthy message on Instagram, revealing his frustrations at missing the amount of game-time he has in the past six months.
Murray, who has won two Wimbledon singles titles and the US Open, added he would remain in Australia for the next couple of days as he assesses the impact of his latest injury, insisting he wants to avoid the prospect of going under the knife as much as possible.
"Having been recommended to treat my hip conservatively since the US Open, I have done everything asked of me from a rehab perspective and worked extremely hard to try get back on the court competing," Murray wrote.
"Having played practice sets here in Brisbane with some top players unfortunately this hasn't worked yet to get me to the level I would like, so I have to reassess my options. Obviously continuing rehab is one option and giving my hip more time to recover.
"Surgery is also an option but the chances of a successful outcome are not as I high as I would like which has made this my secondary option and my hope has been to avoid that.
"However, this is something I may have to consider but let's hope not.
"I'm going to be staying in Australia for the next couple of days to see if my hip settles down a bit and will decide by the weekend whether to stay out here or fly home to assess what I do next."