this guy nearly broke his arm... 
Fighters get injuries during training all the time. I read the comments and disagree that it was a punk move. It was a move and he’s right, if he wanted to snap it, he could’ve. Can’t tell you how many fighters I’ve worked with that trained with broken fingers, ribs, shoulders, knees, stingers, eye pokes, etc.
Kongo would always come in with rib injuries and jammed fingers I would pull back into joint, tape it up an keep going. Strickland was trying to find a way out of that session…period