In terms of the character itself, I can't really say that I find anything really difficult. I enjoy the character so much I don't perceive difficulty in trying to be him. It's just a matter of how do we get there.
There are a lot of things and in order to be at the top and maintain your focus you have to have something that motivates you. For me, it was what I perceived as a lack of respect from the boxing world as well as the media, which made me want to work so hard and be great.
I chose to be Mrs. Johnny Cash in my life. I decided I'd allow him to be Moses and I'd be Moses' brother Aaron, picking his arms up and padding along behind him.