Just a rumour I heard and I cannot verify it, but didn't Oscar duck Tszyu at some point? He skipped 140 and turned down a fight with Tszyu didn't he? It would be a great fight but I would favour Kostya ever so slightly,although I could never rule out the Golden Boy. Kostya strenght was against boxers,he had time to think his way around it,which is why I would favour him.I stress,it would be close and I would not be surprised to see Oscar beat him.