I don't think of IT as a dirty player, but it's hard for me to justify that action using any basketball logic. It wasn't a whack at the ball... or if it was, he didn't come anywhere close. I kind of think he was giving the foul to stop the dunk and used too much force, but that won't be much of a case when they review this later. Or maybe he was down 30 and just took the chance at a cheap shot when it presented itself. Again, I don't think of IT as that type of guy, but who knows?
I'd expect him to miss some time.