Marcelo hurt his ribs with the push off. You can see that both of his feet are under. It's a more advanced arm-break when the bicept slicer (my personal go to) is banned.
Hey IronMan, what happened to Brennan in his match with Garcia? Am I not seeing something?
Also, I don't understand why he simply let Marcelo step over and take his arm like that?.. He didn't really show too much resistance until he was already trapped in the armbar.
Marcelo trapped the arm, there's no out when the hook is that deep. Brennan was going to try and roll out, but you can't roll out of one of Marcelo's moves. It's not a valid escape.