Rangers expect to be without Francisco Sandaza for the rest of the year after he sustained a broken cheekbone during the club's League Cup win over Motherwell.
The Spanish striker was taken off following a first half collision with opposition defender Shaun Hutchinson, initially playing on before being forced out of the action.
Sandaza underwent an operation on Thursday and, although Rangers expect his initial recovery period to last eight weeks, the club have said they expect to be without the former St Johnstone man until the turn of the year.
Speaking after his side's win, Ally McCoist told the Rangers website: "Fran is away up to the hospital to get an x-ray.
"On a great night for us, that’s some really sad news and it’s a real blow.
"He’s having a scan on his cheekbone because the initial thought from the doctor is that it isn’t looking too good for him.
"I’m really disappointed for Fran but we’re keeping our fingers crossed for him that it isn’t serious."
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