Rangers manager Ally McCoist admits he may go back in for Carlos Cuellar in January after confirming the Aston Villa defender will not return to Ibrox this month.
McCoist has been keen to bring Cuellar back to the club, but a deal has been held up due to the Spaniard's knee injury.
With Cuellar struggling to be fit before the close of the transfer window, McCoist has confirmed a deal to re-sign the stopper has been put on hold.
"It's done for this window and it's purely and simply down to getting somebody in to play," said McCoist.
"I don't need to tell you what I think of Carlos, I think he is a top class defender. I would welcome him with open arms but we need somebody to play.
"I wouldn't say I wouldn't be interested in going back in for him."
Meanwhile, McCoist is potentially facing a defensive crisis after admitting Kyle Bartley is now a doubt for next week's Europa League play-off against Maribor.
The on-loan defender suffered a groin strain in Saturday's 2-0 win at Inverness, while his replacement in the match - Ross Perry - is also struggling.
McCoist added: "He has mixed emotions. He is delighted the boys managed to get through with three points but, at the same time, he is sitting in there with an ice pack.
"We won't be able to diagnose him until Sunday morning. But if you are going to come off in the first half of a game, we would have to expect him to be doubtful for the European tie, although it's very early to say that just now.
"I don't think David Weir will make it, Lee McCulloch will probably have a chance, Sasa Papac is suspended but I would hope Steven Whittaker won't be too far away.
"With Ross Perry we will be better placed to have a look on Sunday morning."