Celtic have been dealt a huge injury blow regarding Callum McGregor.

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That's according to a report by the Daily Mail (via the Glasgow Evening Times), who claim that the 28-year-old requires surgery on a fractured cheekbone which the central midfielder picked up in the Scottish Cup win over Alloa Athletic last weekend.

The report goes on to state that this will keep the Scotland international out of action for between four to six weeks, meaning he looks set to miss fixtures against Hearts, Dundee United, Rangers, Motherwell, Aberdeen and perhaps even the two-legged Europa Conference League tie against Bodo/Glimt on February 17 and 24.

Fans will be livid

While injuries are very much part and parcel of the game, when taking into account the sheer number of setbacks Ange Postecoglou's side have suffered this season, in addition to the fact that Celtic were playing a League One side in the cup fixture, the 56-year-old's decision to start McGregor against Alloa could very well have left the Parkhead faithful livid with the manager, particularly considering the tough run of games Celtic have in the coming weeks.

Indeed, with both James McCarthy and Reo Hatate on the bench for the fixture, two midfielders who arguably would have benefitted much more from first-team minutes than the Celtic captain, exactly why Postecoglou decided to field McGregor from the off is very much up for debate.

Granted, the benefit of hindsight is a wonderful thing, but with Liel Abada and Yosuke Ideguchi also limping off with injuries against Alloa, Postecoglou has once again been left extremely short of options in a number of different positions within his first-team squad.

However, with the Greek-Australian coach suggesting after the 2-1 victory that both Abada's and Ideguchi's knocks were not too serious, the duo may well return to action in the not too distant future, although, the loss of McGregor for what could be two months is undoubtedly a huge blow for Celtic - and one that could easily have been avoided.

In other news: Ange can finally axe "pathetic" £10k-p/w Celtic flop with "creative" 82-assist machine