Mitrione may have a decent chin but it's nowhere near the likes of Roy's. He also has decent striking and power but Roy traded with and survived JDS so I don't think he has much to worry about. I think it's in Mitrione's best interest if Roy decided not to make it a grappling match, btw.
Damn, I was really looking forward to Roy VS Carwin, again.
Not saying he has a better chin then Roy not many do I'm just saying he has a better chin then some of the guys that Roy has KO'd. I don't think Mitrione ko's him either just think it would not be in Roy's best interest to take his stand lightly.