Alasdair Lamont
BBC Sport Scotland

Three times in the last few minutes, Rangers players have passed the ball straight into touch. Then Martyn Waghorn runs the ball over the touchline on a rare Rangers attack. Those moments rather sum up Rangers afternoon so far. Just not good enough.

Rangers midfielder Emerson Hyndman, who looks elegant in possession, pings a ball down the left for Martyn Waghorn to chase. He does that bit all right but his control is poor and he's like a man chasing an empty crisp packet that's blown out of his hand in the park as he tries in vain to trap it, control it, och, just get hold of it somehow. The Celtic fans goad him mercilessly as Craig Gordon accepts the goal-kick.

Celtic squander a free-kick as Patrick Roberts' pass to Scott Sinclair reaches its target but the Celtic penalty scorer is offside.

Former Rangers striker Kris Boyd on BBC Radio Scotland: "Kenny Miller picks up a great position in the centre of the goal there. He’s unlucky, he’s looking to get a bit more power on it and I think it might have hit his shoulder. But it’s an opportunity for Rangers that, in the next 10-15 minutes, they’ll need to take."

My apologies to Patrick Roberts - I'm only now mentioning his shot at the Rangers goal from a few minutes ago which was saved by Wes Foderingham. He's had a good game, the young Englishman.

James Tavernier clips a first-time ball into the Celtic box and Kenny Miller stoops to direct a header towards goal. However, it lacked pace and Craig Gordon makes a rare save.

Alasdair Lamont
BBC Sport Scotland

The Celtic supporters are so confident this game is dead and buried they've turned their backs on the action as they perform a mass huddle. Pedro Caixinha has been much more animated this half, positioned at the edge of his technical area. But even he seems at a loss as to how to turn this game in his side's favour.

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

You can see the gulf in the two teams. Not only are Celtic passing, moving and creating opportunities, when they do lose it they are putting so much pressure on Rangers they just can't cope with it.

Former Rangers striker Kris Boyd on BBC Radio Scotland: "Celtic can afford now to play a couple of passes around at the back and suck Rangers out now. Celtic have got the players to put 25 passes together, suck Rangers out and hit them on the break."

Celtic come close to scoring another twice in quick succession as Leigh Griffiths cracks a shot from 18 yards that has Wes Foderingham at full stretch to tip over and that is followed by a header over the bar by Dedryck Boyata.

Chris McLaughlin
BBC Sport Scotland

Rangers had looked revitalised with the half-time introduction of Barrie McKay and Joe Dodoo but Celtic are so clinical on the break and that Sinclair penalty looks to have put this to bed. Celtic are flying once again. 

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

"Wes Foderingham was unlucky – he went the right way, but it was the pace on the shot from Scott Sinclair. He got good hands to it, but it comes off the post and goes in. It was an absolute penalty, no doubt about it."

Scott Sinclair slams his shot from 12 yards to Wes Foderingham's right. The big goalie palms it on to the post but the ball crosses the line and Celtic are in control.

Celtic win a penalty as James Tavernier mis-times his sliding challenge and sends Leigh Griffiths flying just inside the box. Correct decision by Willie Collum.

Barrie McKay lofts a high cross into the box for fellow substitute Joe Dodoo but he can't trouble Craig Gordon. The pair at least are offering a threat.

Celtic get us under way for the second half.

Pat Bonner
Former Celtic goalkeeper on BBC Sportsound

"The intensity, the passing, the movement, Celtic played almost using a diamond with Scott Brown, the two centre-halves and Craig Gordon.

"Rangers played a flat four at the back, a flat three in midfield, a flat three up-front. They played with three lines of players, and Celtic just played round them.

"The three midfielders have to cover the full width of the pitch, Celtic pushed the full-backs on, Scott Sinclair went on the inside, Moussa Dembele kept the two centre-halves higher up the pitch, and Celtic just dominated possession, and they couldn’t get near them.

"Celtic will be disappointed they haven't got that second goal. They haven't tested Wes Foderingham enough, they've had two shots, and that'll be a big question - can Celtic get a second goal quickly to kill this game off? If they don't, Rangers still have that chance."

Image source, SNS