Footage from YouTube has captured the moment that Rangers fans turned on manager Michael Beale as he substituted Kemar Roofe against Celtic.
The striker left the field of play on 64 minutes as he was replaced by Danilo at Ibrox.
Roofe was one of Rangers' better performers in the derby fixture and he thought he had opened the scoring just before the half-hour mark when he found the back of the net against Joe Hart.
His strike was subsequently ruled out by VAR and referee Don Robertson, but Gers fans were still appreciative of Roofe's display.
Video footage from Rangers YouTuber OhItsSteely has captured the moment Roofe was subbed and also the furious reaction from the stands.
One fan can be heard shouting: "F***ing Roofe. F***ing hell Michael!"
Beale went on the defensive after his Rangers side were booed at the end of their 1-0 defeat by Old Firm rivals Celtic at Ibrox.
Home supporters vented their frustration at manager Beale and the players at the final whistle.
Beale said: “I am speaking after a defeat. I don’t think everything at Rangers is broken and everything at Celtic is rosy after today’s game.
“Two teams played today, we made a huge mistake for a goal. We had chances to score and win that game and we didn’t.
“We have to dust ourselves down. We have two weeks now to work on the training pitch, it’s a good period for us barring the internationals who are away.
“And then we have to come back. I think we have five games in 15 days when we come back, so it’s a chance for us in that moment to show improvement.
“I understand the frustration with the fans. It is with the shirt. It is not just at Rangers, it is anywhere.
“It is a derby, a game where there is a lot of emotion involved and the fans expect their team to get a result and we didn’t.
“That’s par for the course. In terms of pressure, you are always under pressure in this job.
“You are only ever a couple of results not going your way to feel that. The most pressure is the one we put on ourselves and we have fallen short of that today because I expected and wanted us to get a result.
“Over the course of the 90 minutes I think the result is harsh on us but in terms of these games, they are only about the result.”
