Bolton Wanderers, Millwall and Leeds United have been linked with departing Fleetwood Town defender Conor McLaughlin.
The Reading defender was on loan at Millwall last season, and the Lions want to make it a permanent affair.
The Wolverhampton Wanderers man previously played for Millwall on loan.
Under Neil Harris, Millwall have halved the deficit between them and the safety of 21st place in the Sky Bet Championship, but the battle is far from won.
Millwall manager Neil Harris says he knows nothing about Celtic's reported interest in defender Alan Dunne.