The challenge for me is his size because, for the first time in my career, I'll be meeting an opponent who is taller than me and has a longer reach.

On your way to the top, you always get some chriticism. Criticism is a great motivation.

My father told and taught me that the word, can hit harder than the fist.

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 know he's retired, but I'm a big fan of Shaquille O'Neal, his game and his personality. I have a pair of his shoes in my office. You see the size of his shoe and think, 'This is not real, this couldn't belong to a human being.' But he is human!

Mental strength is really important because you either win or lose in your mind. And I'm not solely talking about sporting matches, boxing events - anything you do, you do it first with your mental strength. And you can actually train and develop it, and I am responsible for what I'm saying because I have experience with that.

Sometimes it's boring because it takes time, but it's enjoyable. So beating up people for a living is really fun.