The most feared fighters in MMA history all have three things in common: gruesome stoppages, a highlight reel for the ages and an indescribable aura.
In other words, when you get in the ring with a fighter such as Anderson Silva, you know you're but a strike away from going unconscious.
What's more frightening than that? Going to sleep in front of thousands of people isn't exactly how one would choose to spend their Saturday night.
But every professional MMA fighter is dangerous in their own right. So what makes certain fighters more frightening than others?