Dundee United have had an audacious bid for Aberdeen left back Richie Byrne rejected.
Tangerines boss Craig Brewster made his advances following the Pittodrie outfit's pursuit of Motherwell full back Steven Hammell.
While Hammell is expected to give The Dons a decision on his future on Wednesday, manager Jimmy Calderwood wants Byrne to stay at the club regardless.
"Craig Brewster phoned to ask about Byrne but there is no way we were ever going to sell him," Calderwood told the Daily Record.
"He is our only fit left back so there is no chance he's going to be leaving and I've told Craig that.
"It's time for a decision to be made on Hammell but even if he does come here there is no way Byrne is leaving."
Meanwhile former Tannadice captain Derek McInnes agreed a compensation package to depart the club on Tuesday, and has already attracted interest from St Johnstone and Millwall.
He has had to rule out a return south of the border though because of personal issues.
"I was tempted by the prospect of going to work with Nigel Spackman and Ray Wilkins - that was a big pull for me," McInnes admitted.
"The package was good and they were allowing me to come up to Scotland after the games and fly back down on Wednesdays.
"But I came back up from West Brom because of my family situation and so I spoke to Nigel and he understood the situation. He couldn't have been any better about it."
At the same time, fellow United outcasts Jim McIntyre, Paul Ritchie and David Fernandez (pictured) have been told they must train with the club's Under-19 squad until they can negotiate severance packages.
The trio returned to pre-season training on Tuesday after being transfer-listed at the end of last season, and Brewster has decided to keep them away from the first team until they leave.