Celtic will have to leave at least one of their new first-team signings out of the squad to face Bodo/Glimt in the Europa Conference League.
And Ange Postecoglou will have to decide tonight on which of Reo Hatate, Matt O'Riley, Daizen Maeda or Yosuke Ideguchi will miss out.
Those four along with B-team striker Johnny Kenny completed Celtic 's January business as Postecoglou added significant depth to his squad.