Forget about champions.
How about the contenders who continuously put their careers on the line for just a shot at UFC gold?
There will always be a titleholder for each division. There are not always going to be worthy challengers who are capable of pulling off the impossible.
That's why we need to cherish the fighters the sport currently has in place and marvel in the excellence that these warriors have forged throughout the past few years.
With that said, in regard to how entertaining and close-knit their first encounters were, here are five rematches involving elite contenders that we must see.