In defense of Bare-knuckle Boxing, and why it should come back

MMA contender Rory MacDonald made some headlines recently arguing for a return to the classic, "no holds barred" rules of early MMA. Headbutting, soccer kicking, long rounds--the whole bit.

"I always enjoy longer fights. I don't like going to decision," MacDonald said in an interview with the Fight Network. "Fighting guys this high level, you need more than 15 minutes."

"[Fighting without a time limit] doesn't play into fan-friendly things because guys get tired and it can drag on. You've seen that in the older UFC's with those rules. But yeah, I'm a purist kind of guy. I like knees to the head on the ground, kicks to the head on the ground, headbutts. I think those are all really good tools…