The official Celtic announcement confirmed Oliver Abildgaard was joining the club on a 'season-long deal'.

The omission of the word 'loan' caused some consternation. Let's take a closer look...

Russia and FIFA

The ongoing invasion of Ukraine has affected Russia's football clubs in myriad ways, financial and otherwise.

Celtic have already exploited this by sealing Sead Haksabanovic on a cut-price deal from Rubin Kazan last week.

It appears they have returned to the same club for Abildgaard but in a different manner.

Foreign players registered to Russian or Ukrainian sides have been granted special dispensation by FIFA to 'freeze' their deals for this season and thus sign for clubs abroad. FIFA calls this their 'temporary employment rules'.

So the Dane is essentially a loanee - he will return to his Rubin Kazan contract after this season depending on the war situation - but it is without the parent club's ability to recall him or demand other sweeteners.

READ MORE: What Oliver Abildgaard will bring to Celtic: Dynamic difference-maker profiled as 'jigsaw completed'

Can Celtic buy him?

The short answer is 'yes'... but it seems not right now.

With the FIFA ruling Celtic seem to have recruited him under, it's likely the club has negotiated a salary package of their own for Abildgaard's time in Glasgow. This will expire on June 30 2023.

It is still, as yet, unclear whether pre-arranged purchase options can be set up under the new FIFA edict. There is no mention of this in the official FIFA release.

It's unlikely therefore that any movement on the permanent-signature front will occur until much later - if not at the conclusion - of his current deal at Parkhead.

His contract with Rubin Kazan runs until 2024 so Abildgaard will have one season less on his deal when his campaign with Celtic is up, theoretically making him a less expensive option to recruit permanently if the Hoops do decide to pursue it.

The FIFA announcement can be found here