Neil Lennon's men will have already played the Betfred Cup final by the time the window opens but in the new year they will be fighting on three fronts: Scottish Premiership, Scottish Cup and Europa League. The club may well look to strengthen their already strong squad to handle the demands of so many games. On the other hand there will likely be interest in some of the team's star players, while there will be those on the fringes who are keen on a move away to play football. So who could leave?
Has fallen down the pecking order at Celtic. Out of contract at the end of the campaign.
Has appeared just once this season with Nir Bitton being used ahead of him at the start of the campaign. The defender has been linked with moves away in January.
Has been linked with AC Milan and Leicester City in the past. Many more clubs should be watching him but would take a massive offer to prise him away from Parkhead.
Its just not worked out for the midfielder at Celtic. Still only 21, and with a contract until 2021, a loan move could suit all parties.
A player with too much talent to sit on the bench but it very much behind Mohamed Elyounoussi. Has declared himself ready for action but that could likely be away from Parkhead.
A loan move to Hibs seems the natural step where he would work with Jack Ross once more. Started just five games this term and is a player who requires games.
The Ukrainian is hopeful of minutes soon after barely featuring this season. If that doesnt arrive a possible loan move to get those minutes could prove useful.
Lets face it. Its going to take an offer of more than 25million to force Celtic to sell in January. But the Frenchman, who has been so god, is quite rightly attracting a lot of attention.