Celtic boss Ronny Deila has refused to confirm whether he is interested in signing Hibernian midfielder Scott Allan.
Reports have suggested that the Scottish champions are ready to battle with rivals Rangers for the 23-year-old's signature.
The Gers are understood to have failed with two previous bids for Allan. Rotherham United have also been linked with the player.
"I can't comment on something before it's done," Deila told reporters. "He's not our player. Please try to ask about our players."
Allan joined Hibernian from West Bromwich Albion last summer on a two-year deal.