The former Wrexham, Crewe and Crawley striker – and sibling of Juventus midfielder Paul – arrived in Glasgow this week amid much fanfare.
His manager Alan Archibald says the 24-year-old will be in the squad for the lunchtime encounter but he is not fit enough to start.
Defender Frederic Frans is suspended after last week’s red card in the 0-0 draw at Hamilton while Christie Elliott (groin) and David Amoo (hamstring) are also out.
Steven Lawless is back from suspension and Dan Seaborne could make the bench alongside Pogba after recovering from the ankle knock which has kept him out for six months.
Celtic have doubts over Scott Brown (hamstring twinge) and Leigh Griffiths (calf) ahead of the short trip across town to Maryhill.
Charlie Mulgrew is also likely to miss out after feeling tightness in his groin as he strives to regain fitness following a knee injury.
Nadir Ciftci – who has featured in every Champions league qualifier – drops out as he serves the second of his six-match domestic ban.