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

Criticism is a great motivation. Failure is not an option to me.

In Soviet times the border was closed so we couldn't get out of the country, and I had been reading Robinson Crusoe. I wanted to see the ocean, I wanted to see boats, I wanted to see black people, because we didn't have that in the Soviet Union. I was all excited by that stuff.

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

I would say that Roger Federer is pretty amazing. And Manny Pacquiao - he's such a tiny, little lightweight guy, but the way he fights makes people so excited.

I don't like to get hit, who likes it? I probably wouldn't do this sport if I was getting hit that much.

I don't care where people come from. It is not important to me. If you are good people will like you, if you're not, they won't. It is simple.