Hey you know what, in fairness I'll hold my hands up. I'd read in a couple of places that he'd had significant disciplinary issues, but having searched myself now, I'm struggling to find what they could have been.
Looks like he got suspended for 2 games for "unfounded claims of racism/defamation" after the game vs Cagliari - but this is Italy, so I'd be inclined to take that with a pinch of salt.
Does seem like he's had some sort of issue with the U21's over the last week or so, but other than those two items, his history seems a lot clearer than some of the stuff I'd read was implying.