Wigan Athletic manager Paul Jewell has warned Lee McCulloch he will not be leaving the JJB Stadium unless the club receive 'an unbelievable offer'.
McCulloch, who only signed a new three-year contract last summer, officially handed in a transfer request to Jewell, citing 'family reasons'.
Jewell this week slammed as 'derisory' and 'insulting' a £750,000 bid from the Scottish Premier League side, bearing in mind Wigan paid £700,000 for McCulloch nearly five years ago.
"I don't want to keep unhappy players but I don't want to let players go for nothing either," said Jewell.
"He's come through the ranks as a Championship player, a Premier League player and now an international player, so he has a market value.
"He was happy to sign a three-year contract in the summer; now if he wants to leave - and I desperately don't want him to - and it is right for us, then he can go.
"At the moment I've not spoken to the chairman (Dave Whelan) about it and I haven't got a figure in mind because I really don't want him to leave.
"But it's up to Rangers to come up with a proper bid, or Celtic, or Kilmarnock - whoever. It has to be something that's fair.
"Every player has their price, it doesn't matter who he is, but unless it comes up to scratch then he will be staying here."
Jewell added: "Walter Smith knows my stance on it.
"As far as I'm concerned, nothing is going to be done unless it is an unbelievable offer - and even then, I probably won't consider it."
Jewell is particularly unhappy at the involvement of the agents in this latest saga, particularly as McCulloch is currently only represented by the Professional Footballers' Association.
However, John Viola has been speaking on McCulloch's behalf, leaving Jewell to add: "I know who represents Lee until March.
"They are the same people who were involved when he signed his new contract in the summer.
"But I've had this fellow from Scotland (Viola) who has come onto me this week claiming he is Lee's agent, but he isn't.
"I think Lee has forgotten to tell him he's contracted to somebody else.
"Last week I had another agent who rang on Lee's behalf and it was not the same agent who rang me this week.
"I think it all depends on what day it is as to who is Lee's agent!"
Jewell, though, insists McCulloch is available for selection for the Barclays Premiership clash with Everton on Sunday when the Latics will aim to end a bad run of six successive league defeats.
"He's every chance of playing," said Jewell.
"People can have their differences with the club, or with me. I don't really care. He is paid by us to play for us.
"We both know each other well enough, and if he tries his best, then not a problem. If he doesn't, he's got a problem."