Chris Sutton poked fun at old boss Martin O'Neill on social media on Wednesday, taking a hilarious dig at the ex-Celtic boss.
Sutton and O'Neill maintain a great relationship with the pair winning a number of league titles at Celtic together.
O'Neill is currently doing the rounds covering his autobiography as he speaks about his life in football.
And as part of his promotion, O'Neill is doing a Q and A for his Twitter followers.
Chris Sutton took the opportunity to poke fun at his old boss.
Saying on Twitter, he asked O'Neill: "Why were you nasty to me on a number of occasions @moneill31 but nice to Henrik all the time?"
O'Neill took the playful criticism in his stride, responding to Sutton and praised Sutton.
He said: "Because he scored more goals than you! However, had you not come to @CelticFC when you did we may not have beaten Rangers that glorious afternoon.
"You were a landscape-changer when you came to the club & had you not done so, we wouldn't have achieved the success we did."
Martin O'Neill's book 'On Days Like These - My life in football' was released earlier this year.
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