Aberdeen suffered their second defeat of the season in spectacular fashion as they were punished by a ruthless Motherwell at Pittodrie.
The Steelmen raced into a three-goal lead after just 20 minutes thanks to error-strewn opening defensively from the home side.
Dons boss Derek McInnes made three changes to the side which beat Viking FK in the Europa League on Thursday.
Scott McKenna was absent after the Dons opened talks with Nottingham Forest who have made an offer for the defender while Tommie Hoban and Dylan McGeouch dropped to the bench.
Funso Ojo, Niall McGinn and Ash Taylor were the players who came into the starting 11.
There was just four minutes on the clock when Marley Watkins handled in the penalty area to gift Well a spot kick which Mark O’Hara converted.
Five minutes later it was 2-0 to the Steelmen as Dons captain Joe Lewis made a hash of his clearance, kicking the ball straight to Chris Long and the Well striker raced forward before beating the goalkeeper with a low drive.
Incredibly the Dons conceded again, from a corner, as Bevis Mugabi rose unchallenged to head Liam Polworth’s corner home despite Lewis getting a hand to his powerful effort.
Aberdeen were rattled by their woeful start and it took them until just before the break to threaten Well goalkeeper Trevor Carson’s goal but from Andy Considine’s cross Watkins saw his six yard header come back off the post.
The second half brought an improvement from Aberdeen but they lacked the guile to break down a Well side which comfortably defended their first half lead to secure all three points.
