Tonight, UFC 155 goes down from Las Vegas, Nev. The main event features a heavyweight title fight between Junior dos Santos and Cain Velasquez.
Also on the card are Alan Belcher, Tim Boetsch, Joe Lauzon, Jim Miller and more. Some are big favorites, some are just about even and some are underdogs.
Let's take a look at four underdogs that are going to pull out the win.