It was ridiculous, he might not have deserved a straight red but he could have had two yellows by the point he was off.
The way he laughed after being shown the red was disappointing. I don't think he gives a crap about Juve, he knows he is going to the WC so as long as he stays fit he doesn't even try to play well.
He doesn't deserve an extension, not because he is a bad player he just doesn't care anymore