The Greatest Champions of the Sport.

The sport of Mixed Martial Arts has seen many great fighters and champions come and go, but only a few have cemented a legacy for the ages. I have selected five fighters, from their own respective divisions, that have not only claimed a title but shaped the sport as well. I did not add the Featherweight or the Bantamweight divisions due to the fact that most casual fans are not aware of their existence, and the divisions are relativity new compared to the five major weight divisions.
Heavyweight: