Brendan Rodgers admitted he is still in the dark after Ryan Christie was stretchered off against Red Bull Salzburg.
The 23 year old was carried off with a leg brace in the second half after a collision with Takumi Minamino.
Despite the injury looking serious, the Celtic manager has said the full extent of the knock is not yet known.
Rodgers told the BBC: “It looked a sore one, but I don’t know the details. We’ll have to review it.”
The injury is potentially a cruel blow to Christie, who is in the form of his life for Celtic.
The midfielder broke into the team recently, announcing himself in Celtic’s Betfred Cup semi final against Hearts.
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He’s scored seven goals since his breakthrough, and has been arguably Celtic’s best player in this period.
Although Celtic’s injury crisis has eased in recent weeks, Christie’s injury will come as a blow to the team. His energy and drive in midfield has been a key factor in the Hoops’ good form.
He’s also shone in the Europa League, enjoying good performances against Leipzig and Rosenborg.
Christie wasn’t having his best game for Celtic before being stretchered off in the second half.
He, alongside his fellow midfielders, struggled to get to grips with the pressing from Salzburg. However, he did continuously strive to get forward whenever he could.
His energy is infectious, and is a key factor in him endearing himself to the Celtic support.
We can only hope he’s not out too long, because Celtic will be sure to suffer in his absence.
Captain’s return
The young Scot’s injury will almost certainly mean a return to action for captain Scott Brown.
Although his return to the fold looked in line before Christie was stricken, the injury will no doubt make it easier for Rodgers to shuffle his midfield pack.
With the tough run of fixtures before the winter break intensifying, Brown’s bite in midfield will be a massive plus for Celtic.
Christie made his name for the team during an injury crisis, it would be a cruel irony if he lost his place due to injury himself.