Last summer, I made a list of the 45 greatest upsets in MMA history.
I knew there were some that I had missed and wasn't totally happy with the order, so always had it in the back of my mind to up the list to 50 and make a few improvements.
Since that time, only two new upsets have occurred that made it on to this list, one being Fedor Emelianenko's loss last Saturday to Antonio Silva.
After watching a legend of the game fall for a second consecutive time, I figured it was as good a time as any to publish the new and improved list of shockers.
Here is a list of fifty reasons why this sport is so exciting and unpredictable.
Anything can happen at any second, so there is never a chance to blink in MMA. Whether it is a motivated underdog, an unmotivated champion, or a new powerhouse rising in the shadows, someone is always coming to mark their spot on the mountain.