MAB scenario is a different weight,no relevance. There maybe balance issues with punching power etc but whichever way you look at it,Tszyu was and probably now hits harder than anyone at 140 and Hatton took it. I didn't say one shots(or didn't mean to),he would wear Zab out,there's no way if a lion like Kostya cannot take the punishment dished out by Hatton that a mentally unstable Zab can. He'll look good for a few rounds,then Hatton will take over. Zab can't take pressure,Hatton has too much.And Zab does not have one punch power imo. How do you propose he wins?