It certainly looks like Humberto Brown pooped his pants during a fight against Gabriel Benitez. It's apparently happened before; these are the things you learn when you search Twitter to see if a guy pooped his pants during a UFC fight, so it's not unheard of. So Humberto Brown's got that going for him.
Brown did not win the fight.[FS1]@ufc that's poop, right? pic.twitter.com/xo8TJgifqE
— Spaedalia (@DARTSisaSPORT) November 16, 2014