These nuclear plants are more dangerous than people realize.

Who's gonna win between two brothers? The Klitschko mother's gonna win because she said it won't happen.

I learned in my Ph.D. the discipline I needed to be successful. Most boxers are not that disciplined. They have talent, but the self-organization - the ability to schedule yourself and your priorities - is lacking. My studies were about the control of training on both the psychological and the physical side.

I think that there's only one nationality and one language in the sport, and you call it performance.

My brother is a doctor and he will take care of post-traumatic stress. I think he'll do it for free.

I think a fight with David Haye, even if he is not American, is going to give positive vibes about the heavyweight division for the American fans and fans worldwide.

Mental strength is really important because you either win or lose in your mind. And I'm not solely talking about sporting matches, boxing events - anything you do, you do it first with your mental strength. And you can actually train and develop it, and I am responsible for what I'm saying because I have experience with that.