"My nephew's been boxing so long. My nephew's been boxing since he's baby, so for him, it's easy to adapt to whatever...my brother taught me about boxing, really, because I boxed him so much...it ain't that he showed me, but the fact that I boxed with him all the time, I learned from him," stated world-class trainer Roger Mayweather, who shared his thoughts on why his nephew, undefeated pound-for-pound king Floyd "Money" Mayweather, is still an elite, sharp fighter after all these years. Check out what else he had to say!