Martin Dowden
BBC Sport Scotland at Pittodrie

He's not featured often but Nir Bitton, who came on for Tom Rogic, has given Celtic a touch more composure. He's slowed things down and Celtic have managed to string a few passes together which hasn't happened often in this second half.

They've taken the sting out of it and that clock is beginning to tick beyond Aberdeen's reach.

It looks like Celtic will have 100 league points in the bag after this.

Leigh Griffiths, like a child snapping the patience of a parent, is booked for strolling off the pitch oh-so-sloooowly. He even stopped to roll down his socks. His replacement, James Forrest, is the opposite, rushing in to the fray.

Now, if only Kudus Oyenuga had headed Morton level, then perhaps Wato Kuate would never have had the chance, a few moments later, to blast United, surely, into the Premiership play-off against Falkirk. That's football.

Image source, SNS

Kenny McLean really ought to have scored after breaking into the left side of the Celtic box. But what does he do? Why, with the angle narrowing, he blazes a shot high over the bar. I think we've seen him do that before, for all his evident class.

Aberdeen show the fight that has taken them to second in the table. Kenny McLean get on the end of a corner and nods the ball down into the six-yard box, but it's Jozo Simunovic who is first to react and Celtic retain their two-goal cushion.

Kenny Crawford
BBC Sport Scotland at Tannadice

Kudus Oyenuga blows a chance to bring Morton back into the tie by heading over from Aidan Nesbitt's cross.

He should have got it on target at least.

Martin Dowden
BBC Sport Scotland at Pittodrie

Aberdeen remain on the front foot and, for a side that's trailing 3-1, they look very strong.

They'll feel they should've had what did look a penalty. Graeme Shinnie broke into the box, nicked the ball before Craig Gordon whose follow through took Shinnie out. It looked a fairly clear-cut spot-kick.

It's a massive decision as that would have really put the outcome of this game in doubt had it been awarded.

The introduction of Nir Bitton for Tom Rogic is instructive. Celtic need to control the midfield better.

Graeme Shinnie dashes into the Celtic box to collect a pass and is sent crashing to the ground by a streak of fluorescence. Big Craig Gordon flattens the Dons skipper, who got to the ball just too late. The home fans are incredulous. Steven McLean got that one wrong, but it was a tough call to make. We're talking milliseconds of a difference between a great goal-saving challenge and a stick-on penalty. It was the latter.

As Andy Considine rather rashly blooters a left-foot shot wide of Craig Gordon's goal, Willie Miller, on the wireless, tells listeners: "The outcome of this game is still not sure because Aberdeen have put in a lot of work, even at the start of the second half."

The haar is lurking over the old stadium as the second half begins.

I can't help wondering about the fans who missed the first 11 minutes of the game. A pie? A pint? A moment's micturition? A missed bus? Whatever the cause, I suspect it will never be repeated. "Aye, I was there that night at Pittodrie..."

Pat Bonner calls it. "For me, it's been the best game I've seen this year," he states on BBC Radio Scotland.

BBC Scotland football pundit Derek Ferguson: "Morton won't lie down, they won't go out with a whimper. They are certainly making a game of it but with the quality United have you feel they are going to take one of these chances."

Apologies for not keeping up with play at the end of the first half! I omitted a diving header by Dedryck Boyata which went fractionally wide of the Dons goal. It was one of those ones where you're left wondering why the player didn't slide in and score with his boot. He had to stoop so far he almost helped himself to a mouthful of Todders turf.