Jon Flanagan stood in for the former Osijek defender but the Ibrox boss will be desperate to get a player who has laid on 10 goals for Gers this season already back into his line-up.

Gerrard said: "Barisic is a doubt for Sunday. He was limping about yesterday so we'll have to see how he is.

"He has been receiving treatment today so we'll analyse that tomorrow but at the moment he is a doubt.

"He's had three or four kicks in a similar area on his foot and he's got some bone bruising there. We'll have to decide what's best for him to do tomorrow."

Barisic's injury is another worry for Gerrard after he saw his side slip two points behind Celtic in the Ladbrokes Premiership title race.

Rangers dominated the opening half hour in the Granite City and took a deserved two-goal lead through strikes from Scott Arfield and Ryan Jack.

But they threw the win away as their intensity levels fell off a cliff.

Jon Gallagher was to blame for the Light Blues' opener but made amends as he fired Derek McInnes' team back into the contest and, with confidence levels renewed, they snatched a point with Andy Considine's close-range finish just after half-time.

Rangers should have had a penalty late on as Lewis Ferguson tripped Alfredo Morelos in the box but referee John Beaton decided the foul was outside the area.

Gerrard revealed the official later apologised for his mistake. "It's 100 per cent a penalty," he said.

"I'm surprised it's not given as the referee is three yards away and looking right at it. He has seen it since and agrees it is a blatant penalty he has missed.

"I have to be very careful what I say, obviously. But I don't think there will be a more disappointed person outside of Rangers tonight than John.

"He has just explained to me that he got it wrong, right in front of his eyes, and there is no excuse. There is nothing more I can say on it to be honest.

"Did he apologise? Yes. I went to see him."