It’s rarely seen finishing foes in the ring, but there’s no doubt the Kneebar is one of the most dangerous submissions out there if done properly. One person who knows a thing or thousand about BJJ is Robert Drysdale, a widely-respected grappler who teaches some of the top fighters in MMA on a regular basis.

In this video Drysdale offers up insight on how to lock up a Kneebar and torque things in such a way that’s sure to earn a tap if one’s opponent has any sense.