I think sometimes, when you're on top and all you do is win, win, win, win, win, you get lazy and lose focus. When you lose it opens your eyes and you get serious. There is always a time when it is good to lose, at the right time for you.

A lot of legends, a lot of people, have come before me. But this is my time.

But if I keep my core and back strong, the scoliosis doesn't really bother me.

You can't really give away anything in your book ... should be exciting, it's my life, and I'm a cool and exciting guy.

I don't know the history of my sport. I'm not like those people who know everything.

I don't think limits.

I can't watch a [Floyd] Mayweather fight. I don't find it exciting. I used to watch boxing in the [Michael] Tyson era when it was exciting. Now it's all bob and weave, a punch here and there. It is not entertaining.