McGregor enters the fraypublished at 65 mins
Rangers 1-2 Celtic
Callum McGregor and Yang Hyun-Jun are on for Celtic.
Reo Hatate and Nicolas Kuhn are the men making way.
Summary
Tavernier clearance cannons off Maeda and into net to gives Celtic incredible lead in 21 seconds
O'Riley doubles advantage after referee Beaton awards penalty for Goldson handball following VAR check
Tavernier nets penalty after Beaton reverses Silva dive decision before Desser stabs in leveller - only for another VAR check to rule it out
Deflected Sima effort hauls Rangers level but Idah drills under Butland almost immediately to restore Celtic lead
But Matondo crashes in in stoppage time to level again
Celtic a point clear of Rangers, who play game in hand at Dundee on Wednesday
McGregor enters the fraypublished at 65 mins
'Different sounding stadium now'published at 13:24 British Summer Time 7 April
Rangers 1-2 Celtic
Kheredine Idessane
BBC Scotland at IbroxFor the first time since kick-off, Ibrox is absolutely at boiling point. Re-invigorated by getting a goal back via James Tavernier, then outraged by the disallowing of Cyriel Dessers 'equaliser' for a foul in the build up.
Very different-sounding stadium now though. Rangers revitalised, Celtic a little nervous.
'VAR making headlines again'published at 13:22 British Summer Time 7 April
Rangers 1-2 Celtic
Pat Bonner
Former Celtic goalkeeper on BBC SportsoundI'm in shock. VAR has allowed this game to create another story that will be talked about for the next month or so.
Celtic were all adamant it was a free-kick, Brendan Rodgers went to Willie Collum.
'The mood has changed in Ibrox'published at 13:21 British Summer Time 7 April
Rangers 1-2 Celtic
Kenny Miller
Former Rangers and Celtic striker on Sky SportsIt's amazing how much a goal can change the mood of a stadium and a team.
There's so much more urgency from Rangers in the last five minutes or so.
Postpublished at 13:20 British Summer Time 7 April
Rangers 1-2 Celtic
Chris Sutton
Former Celtic striker on Sky SportsJohn Beaton had me confused!
DISALLOWED GOALpublished at 13:20 British Summer Time 7 April
Rangers 1-2 Celtic
Ibrox initially erupts as John Beaton points vaguely back at the pitch. Fans think the goal stands, but it doesn't.
Tom Lawrence on Tomoki Iwata - almost the same as the 'trip' on Fabio Silva but with a bit more force.
GOAL Rangers 2-2 Celticpublished at 56 mins
Cyriel Dessers
All square!
Or is it?
Another VAR check...
'I'm not sure that was a penalty'published at 13:17 British Summer Time 7 April
Rangers 1-2 Celtic
Pat Bonner
Former Celtic goalkeeper on BBC SportsoundWe said VAR could have a big say. I'm not sure that was a penalty. For the referee to be five yards away, make a big decision and book the player, for VAR to step in... that's the game. We have to move on.
'The roof's come off Ibrox'published at 13:16 British Summer Time 7 April
Rangers 1-2 Celtic
Kenny Miller
Former Rangers and Celtic striker on Sky SportsYou could have two Joe Harts in goal and there is still no saving that penalty.
It's a fantastic penalty and just what this place needed. The roof has come off.
GOAL Rangers 1-2 Celticpublished at 54 mins
James Tavernier (pen)
Slammed into the top corner!
PENALTY TO RANGERSpublished at 13:14 British Summer Time 7 April
Rangers 0-2 Celtic
Oh my word. That's quite the turnaround!
Replays show there was a bit of contact on Fabio Silva but it's so, so soft.
John Beaton must feel he's made a clear and obvious error as he awards the penalty and rescinds the yellow card.
VAR CHECKpublished at 13:13 British Summer Time 7 April
Rangers 0-2 Celtic
Hold the bus! John Beaton has been asked to reassess that booking. Could it even be a penalty?
Wait, VAR can't get involved in yellow cards, so the VAR must think it's worth a look for a spot-kick.
'That is cheating'published at 13:13 British Summer Time 7 April
Rangers 0-2 Celtic
Chris Sutton
Former Celtic striker on Sky SportsHe's been an embarrassment; throwing himself around all afternoon.
That's called cheating. John Beaton is quite right to give him the yellow card.
YELLOW CARDpublished at 13:12 British Summer Time 7 April
Rangers 0-2 Celtic
Fabio Silva on the turf once more and this time John Beaton has had enough, quickly flashing a yellow card in the direction of the Portuguese.
Postpublished at 49 mins
Rangers 0-2 Celtic
Fabio Silva hits the deck again and there are a few hopeful shouts for a penalty but the Rangers forward has gone down too easily.
Your views on the first halfpublished at 13:09 British Summer Time 7 April
Rangers 0-2 Celtic
We asked for your half-time thoughts, here's what some of you had to say...
Steve: Celtic by far the better team.
Anon: Rangers haven’t been great. But Celtic have been unplayable in areas. I’m not saying we haven’t been bad, but we must play better to get anything out of this important game.
Paul: Rangers will turn this around, 3-2 - mark my words. Celtic this season have always fallen away in second halves of games and Rangers become stronger.
Neville: Rangers need Cantwell on the pitch, he thrives in the bigger games.
Postpublished at 48 mins
Rangers 0-2 Celtic
Reo Hatate fires a shot in from near the edge of the box and Jack Butland does well to hold on.
KICK-OFFpublished at 13:06 British Summer Time 7 April
Rangers 0-2 Celtic
Away we go again.
Can Rangers make a game of this?
Sima on for Wrightpublished at 13:05 British Summer Time 7 April
HT: Rangers 0-2 Celtic
Kheredine Idessane
BBC Scotland at IbroxHe's usually quick to react to anything he doesn't like, and Philippe Clement is no different today: Abdallah Sima on for the second half, Scott Wright off.
'Rangers are rattled'published at 13:01 British Summer Time 7 April
HT: Rangers 0-2 Celtic
Stuart McCall
Former Rangers midfielder on BBC SportsoundThe big difference, for me, is Rangers front three compared to Celtic's front three. And, so many unforced errors.
Rangers are rattled. The key thing is there's another half to go. They'll get in, the manager will make changes to the personnel and maybe the shape as well. He's got three wide men on the bench.