Bayern Munich forward Thomas Muller is widely seen to be a model professional.
He wears his heart on his sleeve and gives his all for the cause. You can't ask for more than that, right?
Daily Football Tips
Well, the Germany international overstepped the mark in his side's 3-3 draw with Ajax.
And in this context, overstepping the mark means he kung-fu kicked Nicolás Tagliafico in the head.
What was Muller thinking? Only the man himself knows.
The referee didn't hesitate to produce a red card, despite Bayern players protesting their colleague's innocence.
Tagliafico probably didn't see the funny side, given that he needed staples to repair the damage to his head.
But everyone else thought it was hilarious. High kicks don't come much higher than this.
Twitter comes into its own in moments like this....