Today I watched a documentary on Bruce Lee. He's scary; I mean, he is really terrifying. That got me thinking, who would I be most scared to get in a fight with?
I started thinking of MMA first. Then after that, I thought, "Wow, there are some real badasses in the NHL." That got me thinking about the NBA, and from then on the NFL.
Finally, I came to the conclusion that if I went into MMA, I might as well count every sport. So that's how this list came to be.