It's no secret that Chris Sutton and Stephen Craigan don't see eye-to-eye.
The BT Sport pundits may play up their feud for the cameras, but they have also genuinely gotten under each other's skin in the past, the vast majority of times being Sutton making Craigan lose his cool by butting in or refusing to take one of his points.
That said, we didn't expect to see the former Motherwell player kick off BT Sport's coverage of the Sunday action in Scotland with a hefty two-footed challenge on Sutton - wearing suits and everything - but that is exactly what happened.
It was clearly pre-planned, but it seems like Sutton was caught off guard by the force of the challenge.
He saw his chance, and he really went for it.
That would have felt so satisfying for Craigan, regardless of the damage done to the suit.
Incredibly, the two would agree on a point later on in the broadcast regarding Leigh Griffiths.
On BT Sport's coverage of the Sunday action in Scotland, Sutton agreed when Craigan claimed that Griffiths needs to 'grow up', and added that his behaviour was not befitting of a Celtic player.
Leigh Griffiths, the great player which he is, I'm a huge fan of his, but he has to stop these silly antics. Tying a scarf around a post - he got banned from the Rosenborg games for his stupid antics - It's not befitting of a Celtic player to act in that way.
Leigh Griffiths needs to grow up.
The Scotland striker bagged the second to seal the result, and picked up a Celtic scarf to wave over his head for the celebrations, with himself and Scott Brown taking great pleasure in basking in the rage of the home fans.
Griffiths was also accused of wiping his snot on the Rangers logo on the corner flag, and he does have a history of being a bit of a wind-up merchant when it comes to intense encounters, so a lot of people were upset with his antics during Saturday's match.