Aberdeen’s Scottish Premiership title hopes suffered a potentially fatal blow as they were held 1-1 by Dundee at Dens Park.
The Dons conceded an awful equaliser as they missed their chance to draw level with leaders Celtic.
New signing Andrew Driver was given a start on his competitive debut for the club following an impressive display for the under-20 side in the midweek Development League win at Ross County.
David Goodwillie and Donervorn Daniels dropped to the bench with Driver and fit-again Willo Flood taking their places in the team.
Dundee manager Paul Hartley made three changes to his starting 11 in what was the Dark Blues first match in three weeks with David Clarkson, Paul McGowan and Simon Ferry returning to the starting line-up.
Aberdeen quickly took a grip of proceedings once the match kicked off, forcing several early corners, but failed to make them count.
Dundee were happy to sit in and try to hit the Dons on the break and it took until the 22nd minute for a meaningful chance at either end, Thomas Konrad’s long ball sending Paul McGowan clear but Dons goalkeeper Jamie Langfield managed to clear the danger.
The home side went closer when Paul McGinn tried his luck from 25 yards but his low driven shot flashed just wide of Langfield’s right post.
But with Dundee’s confidence growing and players deciding to commit themselves forward, Aberdeen took advantage.
Driver was the architect with a fine run into the box before he played the ball through to Adam Rooney and the attacker finished in style from 10 yards to claim his 25th goal of the campaign.
The Dons then had a penalty claim turned down when Dundee’s Willie Dyer appeared to block Niall McGinn’s goalbound shot with his hands but referee Craig Thomson rejected the appeal from the visiting players.
Dundee goalkeeper Scott Bain stopped his former club from making it 2-0 within minutes of the restart when he tipped Rooney’s goalbound header away.
The Dons looked comfortable but they giftwrapped an equaliser afterLogan did well to prevent a ball going for a corner but for reasons known only to him, Jack decided to try a backheel to keep the ball from going for a throw-in. He succeeded only in returning the ball to Alex Harris who crossed for Stephen McGinn whose near post flick beat Jamie Langfield.