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

I think that boxing is actually not as dangerous as the politics. In boxing, you're gonna get a bloody nose or a black eye. In politics you can obviously get either dioxin in the food or bullet in the head.

I should say that mental strength is No. 1, experience [is] No. 2, physical strength is No. 3, and genetic ability that you're getting from Mother Nature probably comes after.

I train six days a week for four to five hours a day. I like to keep the same schedule when I'm in camp for every fight.

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.

There is no money in this world that will make us fight.

This guy [Tyson Fury] really wants to prove himself in the ring and confirm what he keeps telling everyone, that he's the best in the world.