Bougherra has been an ever-present for Rangers this season
Rangers defender Madjid Bougherra will miss Saturday's away match against Kilmarnock and will have his hamstring problem assessed.
The injury may keep the Algerian out of Wednesday's Champions League meeting with Manchester United at Ibrox.
Bougherra sustained the injury against Aberdeen last weekend and missed his country's midweek game with Luxembourg.
"We have a problem with Madjid Bougherra," manager Walter Smith told the Rangers website.
"So we have one or two problems that we have to overcome in that regard."
Sasa Papac is still recovering from a wound above his eye but could feature against United even if he misses out on Saturday while Steven Davis, Steven Naismith and Steven Whittaker are expected to overcome knocks.
Takeover talk changes nothing for Smith
With strikers Nikica Jelavic and James Beattie as well as defender Andy Webster and midfielder Maurice Edu all long-term absentees, Smith's options for upcoming domestic and European fixtures have already been limited.
But the manager has been boosted by the news that Kirk Broadfoot and Kyle Lafferty are winning their fitness battles.
"We're a little bit better off than we were against Aberdeen last weekend. Kirk Broadfoot and Kyle Lafferty look like they will be fit," said Smith.
"Kirk is one of those boys who can play in any of the positions across the back four and that's a handy thing for any team to have.
There's no problem just slotting Richard Foster in because he's an experienced enough player with confidence in his own ability
Rangers manager Walter Smith
"They will be assessed again this morning (Friday) but indications are that they will be ok.
"We had quite a number of injuries last weekend against Aberdeen and we managed to handle that situation ok.
"So at Kilmarnock we face a tough game and we will have to go there with the right approach, but we will have quite a few players missing."
On-loan Aberdeen full-back Richard Foster is likely to be involved against Killie, having featured only fleetingly so far this season.
"There's no problem just slotting Richard in because he's an experienced enough player with confidence in his own ability, so he can handle the situation," explained Smith.
"It's been awkward for him because since he's been here the team has played very well and it's been difficult for him to break in.
"But with the injury situation he'll get an opportunity to get a game and he's more than ready for that at the moment.
"When you are struggling for players the loan situation is another thing you need to deal with and I think Richard was understandably a little bit frustrated by that."
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