5: Kimbo Slice (Mixed Martial Arts) - So it turned out that Kimbo Slice was not able to compete with the elite MMA fighters. But he sure looked the part, which helped him create a buzz about himself. Just imagine meeting this guy in a dark alley.
This list is very top-heavy with "ring" sports. I thought a lot about NFL and NHL players, but it's hard to pick one because (especially in football) because you don't see their faces too often. I also considered John McEnroe, but he looked kinda silly in retrospect. I also thought about NBA players, but couldn't find one that looked scarier or more intimidating than these guys. Let me know where I went wrong in the comments below, and don't forget to share this article with your friends and like us on facebook!