[Anthony Joshua] is the best man in the division and I believe this excitement speaks for itself. This is what the fans want and this fight must happen.

I always train and prepare with highest concentration and focus on my next opponent. To me, it does not matter what his name is.

Obsession is love in an extreme shape.

If I am 100% prepared for the fight, my opponent has no chance to win the fight. I am saying what I mean: He has a 0% chance to win the fight. There is going to be no luck involved; there is going to be nothing else to stop me from winning the fight.

In the old days, when Muhammad Ali was fighting Ken Norton, Joe Frazier and George Foreman, there was a lot of excitement in the heavyweight division, I have to admit it.

I will teach you how to behave yourself in the ring.

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.