Birmingham City have a bid for Aston Villa defender Gary Cahill rejected by Martin O'Neill.
Blues manager Alex McLeish has been given permission to speak to the 22-year-old, who has spent three months on loan with Sheffield United this season, about a possible switch to St Andrew's.
But O'Neill confirmed: "A number of teams have not only enquired about Gary, but put offers in.
"However, none of them have been acceptable to us or have been accepted by us.
"Birmingham City, I can confirm, have made an offer but I haven't accepted any of the offers because they don't meet the valuation.
"I'm not in a hurry to sell Gary, but he doesn't want his career to remain stagnant and I can't guarantee him playing in our side immediately. But things can change.
"Gary's situation is straightforward. Having spent the last three months out on loan at Sheffield United and having played well and regularly, he doesn't want to lose that now and I can understand his predicament and his difficulty.
"Maybe he'd like to go out on loan somewhere to the end of the season. Now that's something I'll give some consideration to but it's not my utmost thought at the moment.
"If he doesn't want to leave permanently and feels there's a chance here that's fine. I'm not going to shove anyone out of the door.
"But getting some sort of loan fee for someone at the end of the day is of no phenomenal benefit. That's exactly what I said to Alex and everybody else who has enquired about him."