Barnsley manager Keith Hill is confident of keeping Jacob Butterfield but says the skipper could be replaced if he does leave.
Butterfield, 21, has been in eye-catching form this season and has subsequently been linked with a move to Aston Villa.
However, the Tykes have yet to receive an offer for the midfielder and Hill says they are under no pressure to sell.
Hill is not concerned about the situation as he believes that, if Butterfield does go, somebody could come in to fill the void.
When asked if it would be difficult to hold on to Butterfield, Hill said: "It depends on the type of bids we receive, but as far as I'm concerned he's contracted to this club until at least the end of the season.
"He's contractually obligated to stay with us if we don't like or don't accept any fee."
Hill added: "If he did go he would be replaceable, there's no question about that.
"It might not be like for like. It's very difficult to find a Jacob Butterfield.
"But there'll definitely be a replacement. The replacement might already be in the squad."