So far we've seen highly-favoured fighters like Frank Mir, Joe Stevenson, Takanori Gomi, Josh Burkman and Josh Thomson fall to relative unknowns/underdogs. I'd put Shogun on the list but that was a freak incident that I doubt we'll see repeated when we get the rematch.
So, if you're looking at all the fights we've got coming up this year, what upsets do you see taking place (if any)?