Now fellas ...

In a well-balanced world, Rahman will not KO Wlad. (Not that the world is always well-balanced!)

He won against a complacent Lewis. No one denies he has KO power; virtually any true hw does. Even Lewis can't let anyone hit him full without expecting to get hurt. Doesn't mean he has a glass chin. You can have a great chin and still get KO'd by a powerful punch from a hw. I don't recommend that you prove it to yourself, however. Some things are best taken on faith; this is one of them.

Lewis fought a sluggish fight against Rahman and he left himself open and he got caught. Good for Rahman that he was prepared to walk through that open door, but he didn't force the door open. Their next fight was more accurate in terms of assessing the relative stature of each as a hw boxer.

I don't think Wladimir will ever have the full grace of Lewis but he has many of the same kinds of boxing skills - namely, the ability to control with the jab and to box. He also has power. He should find Rahman a tougher opponent than was Byrd, certainly - but though it would not be impossible for Rahman to win by any means, it should not be expected that he should defeat Wlad.