It's time to call a halt to the live text. Thanks very much for your company. The highlights of Saturday's matches will be online at 18:00 BST and the best bits of the game at Pittodrie will be on Sportscene on BBC One Scotland at 22:30 BST and online at midnight. Have a great evening.
- Scott Brown scores winner early in second half
- Champions Celtic now 14 points clear of Aberdeen
- Celtic take 12 points from 12 from Dons this season
- Aberdeen already assured of second place
Celtic full-back Emilio Izaguirre enjoys the post-match celebrations with the travelling fans.
Celtic manager Ronny Deila
"It was a goal I liked to watch. Scott Brown continued running and finished it off. The fans are enjoying the moment. They have had a good season and we have had a very good spell after Christmas. We should have been more clinical but I am happy to win. Four victories over Aberdeen is a strong achievement. Our target is to get stronger, that is what we want."
Aberdeen fans taunt Celtic, despite them taking maximum points from the Dons this season.
Aberdeen manager Derek McInnes
"I can't fault the players, they worked extremely hard today. It's a good goal from their point of view and it allowed them to counter on us. In terms of level of performance, that was excellent from us. The result isn't what we wanted. (Young sub) Lawrence Shankland is devastated (at heading wide from six yards). Nine times out of 10 he would have scored that. He went on and he has this knack of being in the right place at the right time. He'll score goals for us, no problem. We'll freshen the team up over the next couple of weeks. We'll come back next season ready to be better."
Aberdeen fans packed the Richard Donald Stand once again this season.
Former Celtic goalie Pat Bonner
"The game went from end to end. It was open and there were chances for both sides."
The pain of defeat is clear to see on the face of Aberdeen goalkeeper Scott Brown.
That was a cracking game. Scott Brown's winner was a beauty and he is heavily involved in the post-match celebrations. Aberdeen played well and can perhaps consider themselves unlucky not to have earned a point. That diving header from Lawrence Shankland was their best chance. However, the Dons had to rely heavily on keeper Scott Brown, who made two excellent double saves in the second half.
We're in the fifth and final minute of added time.
It's the second time Scott Brown has made a terrific double save in this match. Stefan Johansen is first to test the Dons stopper, who parries it as far as James Forrest, who is similarly thwarted.
Bernard: "#bbcscotfootball Celtic/Aberdeen. What a battle! The competitive nature of this fixture, at this stage of the season is simply delightful."
Aberdeen midfielder Kenny McLean is limping badly - it looks like he has pulled a hamstring.
The fourth official separates managers Derek McInnes and Ronny Deila, who appear to have differing opinions on something or other.
And Hayes curls in a cracking cross for substitute Lawrence Shankland whose diving header from six yards darts past Craig Gordon's right-hand post.
Jonny Hayes's shot strikes Scott Brown's arm, resulting in penalty appeals by the home fans.
Nice stuff by Celtic. Scott Brown and Nir Bitton exchanges passes in midfield before moving the ball to Stefan Johansen, who sets the stocky Honduran Emilio Izaguirre scampering down the left wing. He cleverly back-heels the ball infield, giving him space from his marker and time to cross for Leigh Griffiths who loses control at the last minute and Aberdeen clear.
Two changes by Celtic boss Ronny Deila: winger James Forrest replaces attacking midfielder Kris Commons and defender Efe Ambrose comes on for midfielder Stuart Armstrong.
Niall McGinn has been giving Celtic a torrid time at the back and it takes a timely clearance from Virgil van Dijk at the near post to prevent the Aberdeen forward's cross reaching a team-mate.
bringthemonjpn: "#bbcscotfootball Entertaining match with some good switch play from both sides. Harsh bookings can slow that down. Let the game flow..."
Max Roper: "In Aberdeen Uni library with the window open and can hear the roar of Pittodrie! No need to check when a goal's been scored #bbcscotfootball" Good luck with your exams, Max (assuming you are sort of studying)!
As things stand, with about quarter of an hour to go including injury time, Aberdeen deserve a point from this match. They have made the league champions work hard.
Aberdeen's impressive full-back Shay Logan shows no shortage of skill as he wins a race with Leigh Griffiths and calmly knocks the ball to a team-mate as Celtic reinforcements arrive.
Kris Commons is too forceful with his free-kick and even the tall Celtic defender Virgil van Dijk cannot reach it at the back post. At the other end, Niall McGinn lifts the ball across the face of the Celtic goal but there are no takers in red shirts.
Referee Craig Thomson books Aberdeen's Andrew Considine for a late sliding challenge on Stefan Johansen. He got the ball and the man there.
Peter Pawlett replaces Barry Robson. I wonder if Dons manager Derek McInnes is trying to save the veteran midfielder from being sent off.
Ash Taylor heads Barry Robson's free-kick into the path of Jonny Hayes and his shot is blocked by Scott Brown, possibly inadvertently, with his arm tucked in to his side. Celtic break at speed and Stefan Johansen rolls the ball to ever-eager Leigh Griffiths whose first-time shot careers off Shay Logan.
At the other end, Barry Robson's corner into the Celtic box is headed away by Nir Bitton. Niall McGinn is on to it first but his scissor kick balloons the ball high into the Beach End.
Stefan Johansen seemed to have used up all of his energy by the time he came to hit a powder-puff shot wide of the Aberdeen goal.
Aberdeen winger Jonny Hayes is booked - harshly, I'd say - for a sliding challenge on Jason Denayer as he moved upfield. Celtic captain Scott Brown moves in swiftly to eye-ball the Dons man as the pair go head to head.
Leigh Griffiths congratulates Scott Brown on his goal for Celtic.
Barry Robson is shown a yellow card for a very cynical block on Stefan Johansen as Celtic broke.
Aberdeen goalkeeper Scott Brown makes two solid saves in the space of five seconds from Leigh Griffiths and then Kris Commons with the follow-up volley.
A few changes in personnel: David Goodwillie races on to the pitch for Aberdeen to replace Adam Rooney up front, and right-back Adam Matthews comes on for Celtic team-mate Darnell Fisher.
Shay Logan's shot from 20 yards is knocked half clear as far as Andrew Considine who miss-hits his shot high over the crossbar.
Celtic midfielder Kris Commons slips at the wrong moment, just after taking a pass from Nir Bitton inside the box but losing his footing as he prepared to lash in a shot.
So how will the home side react? Niall McGinn suggests there is plenty of fight yet in the Dons as he weaves along the goal-line out on the left and knocks an effort over Craig Gordon's goal with three green and white-shirted players left in his wake.
Scott Brown will not score a simpler goal this season or next, but nor will he score one that gives him greater satisfaction. He slid in to halt Barry Robson with a superb challenge on the edge of his box and was immediately back on his feet to join the counter-attack, finally latching on to Stuart Armstrong's cut-back to slide past his namesake in the home goal. Superb stuff from the captain, with a classy advance by Armstrong.
Aberdeen have the bit between their teeth, winning the 50-50 challenges.
Aberdeen kick off and within seconds Niall McGinn is able to have a pop at goal but, like a man in a cave fumbling with his mobile phone, his connection is poor.