Some fighters are just born with it.
You can learn how to punch harder or work on your technique, but some fighters just have pure, raw power.
Every fan likes to see a knockout that brings them to their feet. You never know when one might happen. It is that unknown element that makes MMA so entertaining.
UFC fighters love to get that booming knockout. It can advance their career—fans and UFC brass look kindly on KO's—and the fighter might even make some extra money for their effort.
In this slideshow, I will try to stay away from the usual heavy-hitters like Hendricks and dos Santos, and focus on guys that aren't talked about nearly as often.
Here are some UFC fighters who have put guys to sleep over the course of their careers.