They certainly didn't break new ground by doing so, but in April 2012, Jon Jones and Rashad Evans illustrated that friendships can easily fold when a UFC belt is up for grabs.
Even though Jones vs. Evans didn't seem like a barn-burner on paper, the bitterness that existed between the former friends and confidants made UFC 145 a must-buy pay-per-view event.
With the feud between "Bones" and "Suga" put to rest, another tantalizing high-profile showdown between a pair of buddies could soon arise in the UFC's heavyweight division.
If longtime friends Cain Velasquez and Daniel Cormier continue on similar career trajectories, then—like it or not—the American Kickboxing Academy teammates may soon cross each other's paths in the Octagon.
Here are three reasons fans and pundits yearn to watch UFC heavyweight champ Velasquez lock horns with former Strikeforce heavyweight champ Cormier.