"You come from college and you're slim, your abs are everywhere, you want to run. But, man, you start getting those bruises and you start feeling it," Lewis said. "That's how I started explaining the whole thing to C.J. I'm like, 'Yeah, you look good now. But wait until you get into year two, three, four, five, six. You're going to realize, man, I have to put some meat on me to deal with this pounding.'