10 Most Horrifying MMA Injuries Of All Time

10. Mir Snaps Nogueira

It's easy to forget just how much of a nasty bastard Frank Mir was in his heyday. A confident, charismatic heavyweight, his boastful pre-fight proclamations divided UFC fans, but while from the most complete fighter in the game, he tormented many a foe with his sick Brazilian jiu-jitsu skills.

Sadly, beloved MMA icon Antonio Rodrigo Nogueira fell victim to his formidable ground game at UFC 140, having previously eaten his first ever TKO loss against Mir three years prior.

Frank trapped 'Minotauro' on the mat and locked his arm into a Kimura. A gifted submissionist himself, Nogueira had never tapped out at any point in his career, and wasn't going to give up. He suffered for his foolhardiness, as Mir wrenched, and wrenched, and wrenched... until the limb finally went pop.

It was a stomach-churning sight, made worse by the fact that it happened to the universally-popular Nogueira, whose name still inspires incredible devotion from those there for his Pride FC peak. The sight of him on the mat, staring helplessly at his broken, twisted arm was depressing, but unfortunately, it's one of his UFC runs defining images.