I have a Ph.D. in philosophy and sports science. At 14, I went through this really tough Soviet training system. A lot of my roommates got psychologically broken or physically injured. Either you came through, or you were out. I made my Ph.D. work in the field of young athletes aged 14-19 because at this age any human is changing.

Aggression means emotions. Emotions means you’re gonna get off your plan and that means you’ll lose the fight.

It's such a gift in my life to be able to compete - to have the health.

He's been an inspiration for me since the Olympics 1996.

With this magazine, you could change the 'H' to 'G', it may be funnier and better for sales.

I have decided to make a personal message to David Haye. I want him to fight me, to be a man. I wish there will be enough excitement, pressure and courage for David Haye to fight me.

Nobody is born as a champion. You have to earn it through hard work. Get started!