Tony Mowbray has revealed that agents have been ringing him up to tell him Celtic target Balazs Toth is leaving Blackburn Rovers.
The Parkhead club are interested in the Hungary international goalkeeper in their search for a replacement for the retired Kasper Schmeichel.
He has a year left on his deal and has rejected a new one amid a desire for a new challenge. Blackburn reportedly want £4 million to deal in this window.
Rovers boss Mowbray has now revealed he learned from people outwith his club that his keeper is about to be sold.
The former Celtic player and boss told the Lancashire Telegraph: "I don't know is the answer.
"You probably know how the layers in our football club work, and football coaches, football managers, don't need to know if one of your players is going to get sold.
"I don't know. I've had agents phoning me up at quarter to eleven last night, telling me that you need a goalie, and I'm going, why do I need a goalie? They said, because your goalie's getting sold.
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"It's a little bit frustrating that I'm getting told at quarter to eleven, the night before a game, that my goalie's getting sold. I laughed it off, but let's wait and see."
Mowbray concedes that it would be advisable to sell Toth if he is not going to sign a new contract.
He added: "If people aren't going to sign contracts, there's a million footballers out there, you have to cash in.
"I don't think it's right that you invest in footballers, you give them contracts, and then for whatever reason, they go.
"That's no criticism of Toth, if he doesn't want to sign a new contract. In my opinion, he's been offered a pretty substantial contract. He doesn't want to sign it, he wants to move on, you have to cash in.
"I'm not here to criticise the football club, if they get the right deal for him, in his last year, we have to go and get some. There's a million footballers out there; we'll go and find another goalkeeper.
"Scoring goals, celebrating, loving it with the fans after you win matches, that's what life's about.
"If the goalie wants to go and do it somewhere else, and win cups and trophies and play in the Champions League, then who am I to tell him he shouldn't do that? Good luck to him."