I have been in there with all of them and there is nothing left for me to prove.

Why would he want to put himself back through Lance-mania? He has nothing left to prove. He has done all he can in cycling.

I depleted myself to the point where I had nothing left.

The mission I set out on in the beginning - to become heavyweight champion of the world, undisputed, lineal champion - you could say that mission is complete.

I've got a new life now, a new future, there's a lot more to Lennox Lewis than just being a boxer.

Boxing isn't just about brute strength; it's about skill and outwitting your opponent.