Celtic's hopes of Europa League progression suffered a serious blow last night with a 3-1 defeat to Molde in Norway. The Scottish champions were up against from early on having gone 2-0 down before twenty minutes. They did get back into things thanks to a Kris Commons goal not long after halt time but that was as good as it got for Celtic and Commons in particular who didn't take too kindly to be hauled off for Nadir Çiftçi.
The former Derby man wasn't exactly too shy about letting his feelings be known.
Speaking after the defeat, Celtic manager Ronny Deila made sure fans were in no doubt about just what he thought of Commons' behaviour towards his coaching staff.
That's something we can't have. We are a team. I understand that players can be disappointed at being taken off, but to show it in that way, it's not how we want to have it in Celtic.
We are one team and it's not about one player. It's very disrespectful to everyone else. That's unacceptable. I've spoken to him, of course. This is not about punishing people, it's about understanding and about talking about how we react and how we behave.
He was irritated he was taken off. That's OK, sometimes you are irritated, but you do it in a better way than he did.
You have to love the familiarity of the go-to manager reaction to a hissy fit like that.