Kenny McLean is expected to join Norwich City on a three-and-a-half year deal today but the Aberdeen midfielder will be loaned back to the Dons for the rest of the season.
The Carrow Road club is set to pay £200,000 for the 26-year-old, who joined the Dons from St Mirren three years ago.
The twice-capped Scotland international is out of contract at the end of the season and had already intimated to Aberdeen manager Derek McInnes that he did not wish to sign a new deal with the Dons.
McLean travelled to Norfolk last night for a medical with his move to the English Championship side expected to be completed today.
The midfielder is believed to have agreed a deal worth £12,000 per week.
It is also understood that McLean’s former club St Mirren will be due a percentage of the transfer fee received by the Dons.
McLean, who has scored four goals in 25 appearances for Aberdeen this season, had been linked with a move to Rangers with the Dons rejecting a £300,000 bid from the Ibrox side last summer.
Meanwhile, Aberdeen striker Adam Rooney insists the pain of missing out on Scottish Cup glory last season is driving the Dons on to get back to Hampden and go one step better this season.
The Dons lost out to a Tom Rogic late goal as Celtic ended the season as unbeaten treble winners but the Dons forward is determined to go back and lift the trophy in May.
He said: “To lose the cup final to a last-minute goal was hard to take. Celtic were unbeaten but we drove them all the way to the last minute and we’ve tried to use that motivation this season. The players who came in know we want to get to the final.
“There are not too many of us left from the League Cup win but those are the days you remember as a player. We’re still a long way away from another final but it’s a motivator for us.
“It dragged on through the whole summer. Had we won it would have made the summer more enjoyable and we talked about it again before this game. We know what we are capable of and hopefully we can get back there and go one step better.”
The Dons took their first step towards a Hampden return on Saturday as they beat St Mirren 4-1 in the fourth round at Pittodrie.
Aberdeen led 3-1 by half-time thanks to Rooney’s penalty and a Ryan Christie double before Gary Mackay-Steven put the game beyond the Championship side when he scored a spectacular fourth for Derek McInnes’ side.
Aberdeen’s drew another home tie yesterday with Dundee United heading for Pittodrie next and Rooney is pleased to have overcome Championship leaders Saints on Saturday.
He said: “It was comfortable in the end but that was probably due to Gary’s goal. They are a good side but to score four goals and go through comfortably is pleasing.”
Christie impressed with his two goals, too, and Rooney believes the former Caley Thistle midfielder has become a key player at Pittodrie following his return from Celtic on loan.
He said: “I work with Ryan every day in training and I see the ability he has. He glides past people. He’s kicked on from last season and whether we are winning or losing he wants to get on the ball and he sucks other players towards him. We’re lucky to have him here.”