Cris Arreola is a good fighter, he's a little unpolished, and a little unprofessional with the way he trains(or doesn't train) but he's got good power, he's seemingly less affected by power punches than most heavyweights....he's been down but never seemed to be hurt all that badly, he may just have a good poker face.

I think Arreola is an easy night for Vitali, Cris is a head hunter, Vitali is awkward, has good defense and is powerful enough to put the hurt on big Cris, so I see Vitali by early to mid round stoppage 3-5.