Watch Raul Rosas Jr. beat up, choke out YouTuber in prank gone wrong

Tread very lightly when trying to pull a prank on a UFC fighter - especially Raul Rosas Jr.

This is a lesson one YouTuber learned recently as he set his sights on the 19-year-old bantamweight phenom. A member of the TopNotch Idiots YouTube channel began his prank with Rosas on a treadmill at the gym, where things started to get heated. The prankster gave things some time to breathe after the action got separated, but then appeared in a room with boxing gloves on where Rosas was doing bag work.

Rosas spotted him, and landed a punch before things got separated again. The prankster was ready to end things there, but was talked into challenging Rosas to a sparring session. As expected, things did not go well. Check out a clip of the prank below, and the full video above.

Rosas dropped his sparring opponent with a big shot before unloading with big punches. Rosas then took his gloves off and applied a rear-naked choke, getting a tap, and kept the hold on a few extra seconds.

The prankster then revealed what he was doing, and cooler heads eventually prevailed.