Postpublished at 45+3 mins
Celtic 1-1 Aberdeen
Celtic defender Dedryk Boyata needs to make a lunging block in front of goal as the ball breaks the way of Jayden Stockley.
Another Dons corner but this one is repelled without any fuss.
First-half sub Rogic netted from close range
Armstrong fired Celtic level after Hayes volley for Dons
Celtic complete unbeaten domestic treble
Aberdeen's 27-year wait for Scottish Cup continues
Colin Moffat
Celtic 1-1 Aberdeen
Celtic defender Dedryk Boyata needs to make a lunging block in front of goal as the ball breaks the way of Jayden Stockley.
Another Dons corner but this one is repelled without any fuss.
Celtic 1-1 Aberdeen
Another Niall McGinn corner. This time Kenny McLean outjumps Celtic skipper Scott Brown but he can't keep his effort down.
The Dons definitely look to have an edge at set-pieces.
Celtic 1-1 Aberdeen
Leigh Griffiths puts his laces through the free kick from 22 yards and the ball zips narrowly wide of the top corner.
Celtic 1-1 Aberdeen
Stuart Armstrong's determination to get forward results in a free kick on the edge of the Aberdeen penalty area. Leigh Griffiths is over it...
Celtic 1-1 Aberdeen
Celtic striker Leigh Griffiths peels off to the left to gather a Callum McGregor but his low delivery is easily smothered by Dons keeper Joe Lewis.
Celtic 1-1 Aberdeen
Both teams take a well earned breather as the sun reappears at the national stadium. Celtic need to try and string a few passes together since they have been pretty ragged in possession so far.
Celtic 1-1 Aberdeen
Chris McLaughlin
BBC Sport Scotland at Hampden
Quote MessageCeltic looking disjointed since that forced change. The momentum is definitely with Aberdeen now. Can they make it count?
Celtic 1-1 Aberdeen
An enterprising run from Aberdeen full-back Shay Logan has Celtic in a muddle at the back. Kenny McLean shapes to curl one low into the far corner but doesn't catch it and the shot fizzes well wide.
Celtic 1-1 Aberdeen
Steven Thompson
Former Scotland striker on BBC Sportscene
Quote MessageThere's no doubt in my mind that Aberdeen have been the better team so far.
Celtic 1-1 Aberdeen
From Niall McGinn's corner, Jayden Stockley is able to power a header on target but it's straight at Craig Gordon, who again doesn't catch it but his poor handling is not punished as a defender hacks the ball clear.
Celtic 1-1 Aberdeen
Celtic look a bit rattled at the moment as Mikael Lustig upends Jonny Hayes wide on the left. A deep free kick looks like it's going to land on the head of Ash Taylor but a stretching Jozo Simunovic is able to make a crucial intervention.
Celtic 1-1 Aberdeen
Chris McLaughlin
BBC Sport Scotland at Hampden
Quote MessageCeltic have switched to a three at the back on quite a few occasions this season, the problem is, the three usually involves Kieran Tierney. A massive blow for Celtic
Celtic 1-1 Aberdeen
Craig Gordon is called into action with two diving saves in quick succession. Jayden Stockley and then Ryan Jack test the Celtic keeper, who opts to push the wet ball away rather than trying to catch on both occasions.
Celtic 1-1 Aberdeen
Pat Bonner
Former Celtic goalkeeper on BBC Sportsound
Quote MessageA big guy like Stockley doesn't have to raise his elbow very high to catch a smaller player like Tierney. It looks like he might have lost a couple of teeth. I don't think there was much malice in it
Celtic 1-1 Aberdeen
Kieran Tierney is back on his feet, but it's only to walk off, as Tom Rogic comes on as an earlier than expected replacement.
That will mean a switch to a back three for Celtic.
Celtic 1-1 Aberdeen
Steven Thompson
Former Scotland striker on BBC Sportscene
Quote MessageYou can be physically strong and use your body without being nasty. He doesn't need to do that kind of thing. If Tierney does have to go off it's an incredibly disappointing way to exit a Scottish Cup final
Celtic 1-1 Aberdeen
Kieran Tierney is still down getting medical attention. The physio is mopping up quite a bit of blood and it looks like he might not be able to continue.
Celtic 1-1 Aberdeen
Chris McLaughlin
BBC Sport Scotland at Hampden
Quote MessageAberdeen are caught between trying to break up Celtic's play and building momentum of their own. Celtic would like to get Patrick Roberts on the ball more - he's been very quiet so far.
Celtic 1-1 Aberdeen
Kieran Tierney is getting some treatment for a facial knock after being caught by a swinging arm from Jayden Stockley. It looks like a burst lip for the Celtic left-back.
Celtic 1-1 Aberdeen
Here comes Dons skipper Graeme Shinnie thundering forward on the left and firing a shot into the side-netting from a tight angle.