And that's it for Callum McGregor, who trots off, along with James Forrest.

Adam Idah and Nicolas Kuhn are the Celtic replacements.

Actually, that's nonsense, it's Kyogo going off for Idah - not McGregor.

Image source, SNS

A booking for Celtic skipper Callum McGregor as he drags Nico Raskin to the deck.

Image source, SNS

Rangers get forward for the first time since the interval but Ross McCausland can't get the ball under control in the box. Moments later, Fabio Silva has a go but his shot flies high over the target.

Rangers are hanging on, packing players across their own penalty area as Celtic stroll forward looking for an opportunity to stretch their lead.

Kheredine Idessane
BBC Scotland at Celtic Park

Image source, SNS

Brendan Rodgers has seen his side totally dominate this second half, miss a penalty and create a couple of decent chances.

How relaxed is the Nothern Irishman at the moment? So relaxed that he's sitting down, having a chat to his number two, John Kennedy.

Ridvan Yilmaz and Nico Raskin are on for Rangers, with Borna Barisic and Tom Lawrence going the other way.

The waves of Celtic attacks continue as Daizen Maeda slams the ball home from close range but an offside flag is waving.

Jack Butland denies Celtic again, getting down smartly to hold on to a low, angled effort from Callum McGregor.

Here's how Rangers fans are feeling...

William: John Lundstram's two moments of madness have probably cost Rangers in this game. On going forward, Rangers need a complete overhaul so they can compete with Celtic.

Rose: Too many players missing in action. We needed a hero to step up today. Too bad we haven’t got one so far. A lot to do second half.

Anon: It’s so frustrating watching Rangers when playing an Old Firm match. It looks like the team can’t handle the pressure of the big occasion

Celtic fans are feeling pretty chipper, although these came in before the penalty miss...

Ian: Looks pretty good to me. We are 2-1 up and Rangers are down to 10 men, having lost one of their best players in John Lundstram.

Andre: Much more intensity from Celtic, intent and a clear will to win. Credit to Rangers for coming back into the game but then ill-discipline cost them. Not the first time this season.

Mark: Need to see the game out, no silly reds or free kicks for Tavernier and the league is ours.

Billy Dodds
Former Rangers striker on BBC Sportsound

Jack Butland reads Matt O'Riley like a book.

Just when you think this game is done... It's incredible.

Image source, SNS

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

Butland read it and he's gone the right way.

It's a yard off the ground which allowed him to get a good double-hand to it.

Not the best penalty from Matt O'Riley.

Image source, SNS

Matt O'Riley had to wait a long time and his spot-kick is terrible, weak and a good height for the keeper.

Jack Butland does the rest, pushing it away,

Image source, SNS

Willie Collum has a long look and sticks with his initial decision.

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

It's a definite penalty.

Mohamed Diomande trips Matt O'Riley.

Image source, SNS

There's still a check going on... Now Willie Collum is off to the monitor.

Matt O'Riley is clipped by Mohamed Diomande and Willie Collum points to the spot.

Kheredine Idessane
BBC Scotland at Celtic Park

With Rangers down to ten men, there are huge open spaces for Celtic to exploit. This could be a long, long half of football for the men from Ibrox. It's been attack versus defence so far in this second period. Can Rangers hang on?

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

Rangers are pinned back, being a man down.

O'Riley gives Butland the eyes but does not execute properly.

Lovely footwork from Matt O'Riley as he ghosts away from a couple of challenges and cracks a shot not too far wide.