Published Tuesday, 17 April 2012
Steven Davis of Rangers in action (© Getty)
The Northern Ireland international limped off early during the club's victory over St Mirren earlier this month, and will miss Saturday's trip to face Hearts.
Manager Ally McCoist told the club's official website: "Davo is struggling a little bit. It's not been confirmed yet in terms of the extent of the injury, but it looks like he'll probably need a wee operation towards the end of the season.
"When he gets that done will be decided after a chat with the medical staff, but he won't be involved at the weekend, that's for sure.
"Missing our remaining games is a possibility and that's a concern, but he's going to see a specialist."
The loss of Davis could offer an opportunity for midfielder Rhys McCabe, who received a Scotland Under-21 call-up on Tuesday.
McCoist said: "Rhys obviously played well in the Celtic game and we had him on again when Steven came off against St Mirren.
"We have one or two others who can play in that position, though.
"Maurice Edu has been doing all right and we have other options in there but Rhys would certainly come in to our thinking.
"He hasn't looked out of place at all, and he's a confident lad. He still has miles and miles to go, but he's had a few good games."