I think Vitali is very professional and he doesn't ever underestimate fighters. He knows Chisora is a good fighter and looked good against Helenius. I just feel he's just too big for Chisora though and when he starts to land that big right hand dericks going to know he's not on vitalis level. Vitali has such a strong ring presence and I simply don't see how he could hurt Vitali. I think Vitali will stop Chisora mid to late rounds.