The French striker has been the star of the show in Scotland but will Celtic return to scour the second tier in January?
Gallagher is currently on loan to Blackburn Rovers from Southampton, but Wolverhampton Wanderers could pounce.
The two Lancashire clubs go head-to-head at Deepdale on Saturday teatime.
HITC Sport understands the Blackburn Rovers star, on loan from Southampton, is attracting interest.
Newcastle United host Blackburn Rovers on Saturday as the Championship's 22nd placed side look to halt the leader's winning run.
Few would give Owen Coyle's strugglers much hope against a rampant Newcastle on Saturday, but Blackburn Gallagher isn't shying away from the fixture.
The 21-year-old was one of five Saints loanees in action over the weekend.
Managerless Wolves travel to Ewood Park after a turbulent week at Molineux.
The Southampton loanee helped Rovers on their way to a vital win over Nottingham Forest.
Rovers went out the EFL Cup after a defeat at Leeds, but most fans are far more concerned about sorting out the league form.
Leeds United manager Steve Evans is looking for a new striker during the emergency loan window, but a couple of issues have limited his search.
The Saints duo have found game time hard to by while on loan at Championship outfits Middlesbrough and MK Dons.
HITC Sport understands MK Dons are leading the race to sign Southampton striker Sam Gallagher.