I think Tszyu's biggest downfall was; he will fight the opponents fight because he wants to pass the test of the warrior first.

(Mayweather for instance, is the reverse) and good luck to him,smart fighter.

Kostya had some brilliant skills , controlled angles and pure boxing / countering that could of out pointed or wore down most fighters; he let alot of what he knew slide to be a well timed in your face exciting banger and a Pro Crowd pleaser.

Thats why some people think he is overrated and they are right.