One knife-wielding attacker recently discovered that you can, in fact, lose when you bring a blade to a fistfight … especially if your opponent is none other than retired MMA icon Javier Baez.

The former fighter taught a master class in f—king around and finding out last Wednesday, providing a chokehold-fueled beating of a lifetime to a man who attempted to attack him with a knife outside of his Miami apartment.

In newly-released security camera footage, Baez can be seen effortlessly subduing the would-be attacker, who has since been identified as Omar Marrero, successfully body-slamming him to the ground after he lunged at him with the weapon.

"Once I started putting the choke in, he kind of just let it go because no one is worried about anything else but breathing when you’re losing air,” Baez told local news outlet WPLG of the incident.

Though Marrero was ultimately arrested and currently faces several felony charges stemming from the incident, including aggravated battery, we can only assume that getting his a— whooped by a former MMA fighter hurt a whole lot more than any time behind bars.