Billy Dodds
Former Rangers striker on BBC Sportsound

It's just playing out time for Rangers now. You'd never have thought that at half-time, but so much in command in this second half.

Celtic have just capitulated.

Something has to give, there is no doubt.

Image source, SNS

Celtic are struggling to put any pressure on what still looks like a vulnerable Rangers defence.

All the fight seems to have drained out of their bodies.

Kieran Tierney rises at the back post, but the Celtic left-back's header is clutched out of the air by goalkeeper Jack Butland.

Time is running out for Celtic.

Is it also running out for their manager?

Remember, there are five more top-flight games to come, kicking off in about 50 minutes.

We'll bring you some of the build-up from there, but obviously events at Celtic Park are pretty seismic.

Billy Dodds
Former Rangers striker on BBC Sportsound

I think it's a good finish. I just think Celtic are all over the place. As soon as they lose the ball, there's no shape and it's just so easy.

He drills it, maybe Schmeichel, people will look at him. He gets it in that far corner, but it's not brilliant play from Rangers, it's just given away. Rangers get the ball, one pass, bang, 3-1.

Image source, PA Media

Amid that Rangers flurry, Celtic brought on Julián Araujo for his debut.

The Mexico right-back is on loan from Bournemouth and must be wondering what he has landed himself.

Chris Sutton
Former Celtic striker on Sky Sports

We've seen this movie before with Wilfried Nancy's Celtic.

You can score, but you've got to defend. This team don't do that.

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

The problems aren't high up the pitch, the problems are the shape at the back and the defensive qualities.

Martin Dowden
BBC Sport Scotland at Celtic Park

Wow. All credit Rangers, what a turnaround.

For Celtic, this has just gone full-scale toxic. The board are getting it in the neck from supporters. Many are streaming out of the stadium.

There's a police presence now near the dugout, where Wilfried Nancy stands in utter disbelief.

Celtic are in crisis, with Rangers fully seizing on their chance.

Neil McCann
Former Rangers winger on Sky Sports

It's a mistake from the goalkeeper, but take nothing away from Mikey Moore.

Dreamland for Rangers. Absolute dreamland.

It is Rangers now who are looking the more likely to add to the scoring.

But it is all huff and puff and no class.

Billy Dodds
Former Rangers striker on BBC Sportsound

Celtic are not doing what they were doing in the first half. They've been just absolutely stripped of all confidence in this game.

Martin Dowden
BBC Sport Scotland at Celtic Park

What a turnaround from Rangers and, for Youssef Chermiti, it looks like he has finally arrived. Why Auston Trusty didn't close him down is unclear.

For Celtic, this is turning into another nightmare. Wilfried Nancy looked to the heavens as Rangers' second went in.

A position of dominance has been ripped away by Rangers.

Image source, SNS

Billy Dodds
Former Rangers striker on BBC Sportsound

Games and experience will help this lad, but Celtic, my word.

Once the mistake's made, somebody's got to get out there. He's got pace, physical presence and he's through.

I can't believe what I'm watching here.

Daizen Maeda has a sight at goal.

But the Celtic winger fires low and wide of the far post.

Neil McCann
Former Rangers winger on Sky Sports

This is incredible.

Chermiti, paying back a chunk of that transfer fee Rangers paid for him.

Image source, SNS

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

They give the ball away out in that right-back position, Ralston gets caught out and nobody went to Chermiti.