In the old days, when Muhammad Ali was fighting Ken Norton, Joe Frazier and George Foreman, there was a lot of excitement in the heavyweight division, I have to admit it.

I'm boring but effective.

In the old days, when Muhammad Ali was fighting Ken Norton, Joe Frazier and George Foreman, there was a lot of excitement in the heavyweight division, I have to admit it.

He [Tyson Fury] will be difficult opponent to adjust to, because of his style of fighting and physical conditions. Fans will certainly not be bored.

Mental strength is really important because you either win or lose in your mind.

It's not my place to compare myself to greats like Tyson, Frazier or men like that. But I would look at a fighter like Evander Holyfield. He's a great heavyweight who worked his way up through the weight classes to become champion and had to beat bigger men along the way.

Aggression means emotions. Emotions means you’re gonna get off your plan and that means you’ll lose the fight.