Apparently

This is what I've learned from watching the lives of a group of boxers.

They're not just a group of dumb dudes going around flailing their arms around trying to knock their opponent out. I mean that's their motive usually but that's not who they are. Like artists, this is their passion. They can 'paint a picture' with their punches. They have to have footwork to move around fast enough. 

We were discussing around the room few weeks back. Maybe boxers are good dancers. They move well with their feet. While watching one of the Contender matches, someone behind me shouted "Dance baby, dance!" He's a local boxing trainer, screaming to a fighter in the ring.

If their rhythm is good, they can beat the opponent. Cos some fighters don't really have rhythm and would find it hard to keep up.

Here's a short clip of Ali dancing, since I'm on abit of Ali craze now. But he is indeed the greatest! Watch the legs.