Aberdeen chief executive Alan Burrows told fans at the club's AGM that he "can't give any assurances" that striker Bojan Miovski will not leave in January, with Celtic one of the sides interested in the player.
The North Macedonia international has scored 11 goals in all competitions for Barry Robson's men so far this season and is likely to be the subject of bids next month.
Previous reports stated it could take the Hoops up to £4.4million to land the forward and Burrows insists he cannot rule out the possibility of the player leaving the club.
Speaking at the Dons' AGM, he said: "We are in no rush to sell Bojan Miovski. Aberdeen have a player trading model that requires you, at times when it suits you, to sell.
"However that has to be at the value you believe is right for the club. "Bojan has demonstrated this season and last season he is a striker of supreme quality and I've no doubt is going to have a fantastic career at the very top level.
"I can't give any assurances because I don't know what any other club is going to do. We are not actively seeking to sell Bojan as we go into the January transfer window.
"Our anticipation is Bojan will be here for beyond that period. He is good enough to play in the top five leagues in Europe and I think his value will be demonstrated when we do sell him, that's the level he goes to."