You can't learn to take a punch. Whether you have a glass chin or you don't, the only way of finding out is having it land.
I could see he was having problems taking my punches. I had no problem taking his.
I know one thing: Ray Mercer is not going down from a head punch. I think he's got one of the best chins in the game.
To make it big, a fighter needs power. Otherwise, sooner or later, he'll fall victim to opponents who force the issue and take two or three punches to land one.
My goal is not getting hit and to knock the other guy out. Some people might complain because they want to see boxers beat up on each other, but you cannot last long in professional boxing if you take a lot of punches.
The guys today are just too strong and back then they would take many hard punches to land one.
Speed is something that, in the heavyweight division, we don't have a lot of.
I think the reasons I retired stay the same. I don't want to change my style. I can't take a punch like I used to for whatever reason. I've heard all sorts of theories as to why that would happen, but I can't do it.
Pacquiao has been stopped a 'couple of times by body shots and has been knocked out and I don't think there's anything you can do to improve your ribs or chin.
People can look at my style and my faults, point out all the things I didn't do as well as other fighters but I was never knocked out or stopped.
