St Mirren were beaten for the first time this season after falling to a 3-1 defeat away to Aberdeen.
Toyosi Olusanya scored his third goal of the season to draw us level heading into half-time after Pape Habib Guèye had put the hosts ahead. But second-half goals from Jamie McGrath and Vicente Besuijen saw the points stay at Pittodrie.
There were five changes from Thursday night's draw with SK Brann in the UEFA Conference League. Olusanya came in from the start after his equaliser against the Norwegians, while Alex Iacovitti made first St Mirren start. Scott Tanser, Dennis Adeniran and James Scott also came in with Richard Taylor, Jaden Brown, Oisin Smyth, Jonah Ayunga and Mikael Mandron dropping to the bench.
Shayden Morris slid the ball through for Ester Sokler who looked for a clear run on goal. Alex Gogic tracked the striker well and put in a brilliant challenge to deny him the chance to go one-on-one with Ellery Balcombe.
Olusanya showed a great burst of pace to beat Slobodan Rubežić to the ball as he raced on to a Scott ball down the right channel. The forward broke into the box but fired wide from the angle.
Aberdeen came close to breaking the deadlock on 22 minutes when Guèye got in down Saints' right side and made his way into the box. He was closely marshalled by Shaun Rooney who did enough to put him off as he smashed into the side net.
Guèye would redeem himself when he post the hosts ahead with just over five minutes of the first-half remaining. Balcombe's attempted clearance was charged down by Sokler and Aberdeen won a corner. McGrath swung the ball in where Guèye got his head on it to knock into the net.
Saints levelled in additional time at the end of the half. Fraser clipped the ball down the line and Olusanya showed great persistence to outmuscle both Jack MacKenzie and Rubežić to get on to the ball. He knocked it beyond Dimitar Mitov before forcing it over the line.
Ex-Saint Jamie McGrath gave the home side the lead for a second time 10 minutes after the restart. The Buddies were slack in possession and that allow Aberdeen to make their way into the box. Sokler's ball across was miss hit by Morris but fell kindly to McGrath who smashed into the far corner.
The Buddies looked for a quick response with Scott having a go from the edge of the area. His powerful strike was gathered by Mitov at the second attempt. With 15 minutes remaining, space opened up for Caolan Boyd-Munce to have a go from range. He caught it well but it was straight down the throat of Mitov who held.
But Aberdeen would a third with 10 minutes remaining to secure the points when substitute Besuijen headed home at the back post after a brilliant cross from Graeme Shinnie.
Full-Time: Aberdeen 3-1 St Mirren
St Mirren: Balcombe, Fraser (c), Gogic, Iacovitti, Rooney (Bwomono 76), Adeniran, Boyd-Munce, Idowu (Smyth 46), Tanser (Brown 64), Olusanya (Ayunga 75), Scott (Mandron 64)
Subs Not Used: Urminsky, Kenny, R.Taylor, F.Taylor
Aberdeen: Mitov, Devlin, Molloy, Rubezic, MacKenzie, Heltne Nilsen (Jensen 90), Shinnie, Guèye (Ambrose 67), McGrath, Morris (Besuijen 67), Sokler (Miovski 90)
Subs Not Used: Doohan, McGarry, Milne, Boyd
Referee: Grant Irvine
Assistant Referee: David Roome
Assistant Referee: Alastair Taylor
Fourth Official: Alastair Greive
VAR: Andrew Dallas
Attendance: 17,057
