A cynical foul from the Celtic left-back, bringing down Daniel Candeias as Rangers threatened.

Can either side find a winning goal?

Niko Kranjcar's day is done. He's made little impression for the visitors, and Carlos Pena is on in his place.

Steven Thompson
Former Scotland striker on BBC Sportsound

What an incredible cross that is from Tavernier, who has been outstanding in this second half. Morelos, in between the centre-halves, really has to get that on target. It's another massive chance for Morelos.

Graeme Murty is defending an unbeaten record as Rangers manager at Celtic Park here, after earning a 1-1 draw in March his first spell as caretaker boss.

It might be even better than a point. James Tavernier whips in a volleyed cross from the right and Alfredo Morelos - all alone in the box - glances a header wide.

Rangers have had the chances to win this.

We're into the last 15 minutes here. What chance some late drama?

Callum McGregor opts for power but gets it all wrong, while Leigh Griffiths' acrobatic attempt comes to nothing as Rangers clear their lines.

Steven Thompson
Former Scotland striker on BBC Sportsound

Celtic have lost the control of the midfield area they'd had for large spells of the first half. Rangers have been winning every second ball and dominating the middle of the park, which has been a surprise to me.

Ntcham has been brought on to try and stifle that. Sinclair goes off having had a frustrating afternoon - he missed a couple of big opportunities to score and didn't really impose himself upon the game as you would expect.

That change has seen Callum McGregor move out to a wider position on the left, with Ntcham joining Scott Brown in the centre of Celtic's midfield.

Celtic making a second substitution here. French midfielder Olivier Ntcham is coming on. And it's Scott Sinclair, who's had a poor game, making way.

Steven Thompson
Former Scotland striker on BBC Sportsound

It's a sitter! Unbelievably good play from Tavernier down the right, but so easy from a Celtic perspective.

He danced past two players, got the cross into the box...Morelos, you must simply score that header from five yards out.

What a save, though, from Craig Gordon.

Brilliant chance for Rangers! Great run to the right byline from James Tavernier, who skips past a couple of Celtic players. His cross lands square on the head of Alfredo Morelos, a few yards out, but Craig Gordon sticks a leg out to divert it wide. Amazing.

Strange times indeed. A Celtic move comes to nothing when captain Scott Brown passes the ball straight into touch.

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

Rangers are really on the up in this second half, they're dominating the game now. Celtic have been found wanting in the big moments when they could have scored and they've lost control of the game. Rangers are getting hold of the ball and causing problems for them.

Steven Thompson
Former Scotland striker on BBC Sportsound

Dembele has not offered enough goal threat, not offered enough movement; the basics are linking the play as a striker when the ball comes up to you.

For someone of his size, he's not held the ball up at all well, or linked with his midfield players, and it's no surprise to me he's be coming off the pitch.

That will be Moussa Dembele's last contribution of the match. He looks a bit bemused to be taken off, but the French striker has not really done a great deal today. Unsurprisingly, it's Leigh Griffiths coming on.

Dembele, the subject of much speculation linking him with a move to the English Premier League with Brighton, appears to have headed straight up the tunnel. Is that the last the Celtic fans will see of him?

David Bates goes into the book for bringing down Moussa Dembele.

Danger at the other end now. Great ball in from Daniel Candeias, Josh Windass flings himself at it, but can't make any contact.

Steven Thompson
Former Scotland striker on BBC Sportsound

James Forrest has been great for Celtic this season, but he has not got past his man on enough occasions today.

Nice inter-play from Scott Sinclair, James Forrest and Stuart Armstrong, but the latter takes an extra touch before shooting and Rangers defender David Bates is able to deflect it away for a corner.

"You've got to question Celtic," says former Parkhead goalkeeper Pat Bonner after a couple of dangerous Rangers forays.

"Celtic gave Rangers those chances with the way they kept playing that ball backwards, putting themselves under pressure, when they could keep the ball, get it wide and get it forward."

Former Rangers striker Steven Thompson adds: "They're hesitant to make the passes. Normally they're so confident on the ball and take it in tight areas. Scott Brown has done it, but a lot of others aren't showing to get on the ball as well as they normally do."

No let-up in the pace or intensity in these first seven or so minutes of the second half. No goals so far, but you'd be surprised if it ended this way.