The Chavez who fought Taylor is far too for KT. If he fought Vince's pressure was rough, a prime Chavez is another level
90% of fighters would be cautious after tasting a Tszyu right hand. No doubt he would feel the power, but the problem for Kostya is Chavez wouldn't be deterred and a war of attrition heavily favors one guy. The fight itself would not be a carbon copy, but it's similar in to how Hagler kept coming after Hearns detonated his right hand. Once Hagler doubled down and kept his foot on the gas Tommy was in trouble.