If “The Sharpshooter” sounds like a move you might see in professional wrestling you’re closer than you think, as a modified version has been used by WWE Superstars Bret Hart and Dwayne “The Rock” Johnson. However, the Sharpshooter’s roots come from an actual BJJ technique where the employer fends off an opponent’s guard by locking on to his/her knee, then torquing it to the point of submission.

In this MMATraining Technique of the Day, UFC Hall of Fame fighter Randy Couture demonstrates how to lock in the relatively simple and highly painful hold. Though Couture has never been known for his submissions he’s certainly viewed as one of the most knowledgeable athletes in MMA, a characteristic coming through on this video.