Motherwell remained level on points with second-place Celtic after claiming victory over Aberdeen in a Scottish Premier League encounter at Pittodrie.
Michael Higdon headed Motherwell ahead from Tom Hateley's cross in the sixth minute of play.
But Scott Vernon soon levelled for the Dons, nodding into the net from Rob Milson's delivery.
Omar Daley fired the visitors back in front at the start of the second half and Aberdeen could not recover.
The Steelmen's fourth successive victory over Aberdeen takes them to within 10 points of SPL leaders Rangers, with Celtic having played a game less than their Old Firm rivals and 'Well.
An early free-kick gave the Stuart McCall's side the chance to apply some pressure and Hateley's delivery was diverted into the net by the head of Higdon.
Aberdeen responded quickly and Milsom swung the ball into the box from the left, allowing the unmarked Vernon to head past goalkeeper Darren Randolph.
The Dons took heart from their equaliser and Chris Clark came close with a curling shot that crept over from 25 yards.
Vernon was unable to make a clean connection with another header after being found by Fraser Fyvie's inswinging free-kick.
The hosts continued to press at the start of the second half and Mohamed Chalali nodded onto the top of the crossbar from Rory McArdle's cross.
And that proved to be a turning point as Motherwell went up the park to regain the lead.
Daley, making his first start for Motherwell, ran on to Jamie Murphy's hooked pass, checked back and shot into the bottom corner.
A 25-yard strike by Chalali was parried wide by Randolph as Aberdeen went in search of a second leveller.
A late Dons break led by Youl Mawene was broken down by the retreating Motherwel defence, who held firm in the closing stages to take all three points.
Live Text Commentary
Full Time The referee blows his whistle to end the game.90:00 +2:43
Youl Mawene sends in a cross, Keith Lasley makes a clearance.90:00 +1:00
Tom Hateley decides to take a short corner.90:00 +0:13
Free kick awarded for a foul by Darren Mackie on Stephen Craigan. Direct free kick taken by Darren Randolph.89:27
Chris Humphrey crosses the ball.87:44
Free kick awarded for a foul by Darren Mackie on Jamie Murphy. Darren Randolph takes the direct free kick.86:26 Substitution
Substitution Darren Mackie on for Mohamed Chalali.83:45
Corner from the right by-line taken by Robert Milsom, Michael Higdon makes a clearance.82:51
Isaac Osbourne crosses the ball, Darren Randolph makes a comfortable save.82:01
Corner taken by Robert Milsom, Jamie Murphy manages to make a clearance.82:01 Substitution
Substitution (Aberdeen) makes a substitution, with Josh Magennis coming on for Fraser Fyvie.78:49
Outswinging corner taken by Tom Hateley from the right by-line.74:25
Free kick awarded for a foul by Richard Foster on Chris Humphrey. Stevie Hammell has a direct shot on goal from the free kick.74:00
Centre by Chris Clark, Stephen Craigan manages to make a clearance.73:44
Shaun Hutchinson concedes a free kick for a foul on Scott Vernon. Direct free kick taken by Richard Foster.72:40
The ball is delivered by Fraser Fyvie.72:03
Richard Foster takes a shot.69:59 Substitution
Substitution Chris Humphrey on for Omar Daley.68:56
Isaac Osbourne takes a shot.66:41
Chris Clark delivers the ball.
Foul by Steve Jennings on Mohamed Chalali, free kick awarded. Fraser Fyvie restarts play with the free kick.64:29
Fraser Fyvie challenges Omar Daley unfairly and gives away a free kick. Free kick taken by Stephen Craigan.62:02
Mohamed Chalali gives away a free kick for an unfair challenge on Shaun Hutchinson. Darren Randolph takes the direct free kick.60:54 Substitution
Substitution (Aberdeen) makes a substitution, with Peter Pawlett coming on for Rory McArdle.58:53
Outswinging corner taken left-footed by Robert Milsom from the left by-line, clearance made by Stephen Craigan.58:40
Mohamed Chalali takes a shot. Save by Darren Randolph.57:40
Unfair challenge on Scott Vernon by Steve Jennings results in a free kick. Fraser Fyvie takes the direct free kick.52:46
Stephen Craigan provided the assist for the goal.52:46 Goal scored
Goal! - Omar Daley - Aberdeen 1 - 2 Motherwell Omar Daley scores a goal from the edge of the penalty area to the bottom right corner of the goal. Aberdeen 1-2 Motherwell.52:41
Stephen Craigan produces a cross,51:54
Mohamed Chalali takes a shot.46:17
Outswinging corner taken right-footed by Tom Hateley, clearance by Richard Foster.45:01
The referee starts the second half.45:00 +0:05 Half time
Half Time The referee blows for half time.42:20
The ball is swung over by Chris Clark, Header on goal by Robert Milsom from inside the box goes harmlessly over the target.41:53
Nicky Law delivers the ball, clearance by Youl Mawene.40:30
Effort from 18 yards by Andrew Considine. Shaun Hutchinson gets a block in.39:33
Tom Hateley challenges Richard Foster unfairly and gives away a free kick. Fraser Fyvie crosses the ball in from the free kick.35:53
Robert Milsom fouled by Keith Lasley, the ref awards a free kick. Richard Foster crosses the ball from the free kick right-footed from left wing, Jamie Murphy makes a clearance.34:24
Foul by Tom Hateley on Robert Milsom, free kick awarded. Richard Foster fires a strike on goal direct from the free kick.27:25
Andrew Considine challenges Michael Higdon unfairly and gives away a free kick. Free kick taken by Tom Hateley.27:00
Fraser Fyvie has shot on goal from a long way out that goes wide left.26:16
Corner taken right-footed by Richard Foster from the left by-line, save made by Darren Randolph.23:29
Scott Vernon concedes a free kick for a foul on Keith Lasley. Free kick taken by Keith Lasley.21:07
Richard Foster delivers the ball, clearance by Stevie Hammell.19:33
Chris Clark takes a shot.17:06
The ball is delivered by Richard Foster, Shaun Hutchinson makes a clearance.15:36
Corner taken right-footed by Robert Milsom, save by Darren Randolph.15:26
A cross is delivered by Chris Clark, Tom Hateley manages to make a clearance.14:57
The assistant referee flags for offside against Scott Vernon. Indirect free kick taken by Darren Randolph.14:36
Unfair challenge on Youl Mawene by Michael Higdon results in a free kick. David Gonzalez takes the free kick.13:57
Free kick awarded for a foul by Andrew Considine on Michael Higdon. Free kick taken by Shaun Hutchinson.13:24
Unfair challenge on Andrew Considine by Michael Higdon results in a free kick. David Gonzalez takes the free kick.12:22
A cross is delivered by Chris Clark.9:28
The assist for the goal came from Robert Milsom.9:28 Goal scored
Goal! - Scott Vernon - Aberdeen 1 - 1 Motherwell Scott Vernon finds the net with a headed goal from inside the six-yard box. Aberdeen 1-1 Motherwell.9:15
Robert Milsom crosses the ball,7:17
Shot by Richard Foster from a long way out goes over the target.5:01
Assist by Keith Lasley.5:01 Goal scored
Goal! - Michael Higdon - Aberdeen 0 - 1 Motherwell Michael Higdon grabs a headed goal from inside the six-yard box. Aberdeen 0-1 Motherwell.4:26
Free kick awarded for an unfair challenge on Nicky Law by Rory McArdle. The ball is sent over by Keith Lasley,0:00
The match begins.
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