The Swedish striker was interviewed by Dutch TV channel RTV Rijnmond, singing a song that Celtic fans composed in his honour.
As the closing credits roll, Guidetti - wearing a Celtic training top - sings: “Oh John Guidetti, puts the ball in the net-y, he’s a super Swede and the h**s are died, walking in Guidetti wonderland.”
The on-loan Manchester City striker then grin and describes it as a ‘good song’ during the interview conducted in Celtic’s dressing room.
A number of Rangers fans took to Twitter to vent their anger at the footballer using an offensive term, and while Celtic refused to comment, a Hoops insider said: “John was asked to sing the song that is sung about him.
“He doesn’t know what the song is about or the content of it but to suggest there is any sectarian element whatsoever is absolute nonsense.”
And David Scott, of the anti-sectarian charity Nil by Mouth, said the video ‘underlined the need for a proper education programme for Scots footballers.
He added: “Clubs should make it clear to them the kind of language likely to provoke others.
“We’ve already seen Guidetti’s team-mate Leigh Griffiths being charged under the Offensive Behaviour at Football Act.”
Griffiths was charged over claims he had sang an offensive song about former Hearts player Rudi Skacel, along with fans of Hibernian in an Edinburgh bar before a derby match at Tynecastle.
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