Understanding the Can Opener in Brazilian Jiu-Jitsu
The can opener is a neck crank submission technique in Brazilian Jiu-Jitsu (BJJ) primarily used to open an opponent’s guard. This move involves pulling the opponent’s head towards their chest while controlling their body, creating significant pressure on the neck. Although effective, it is often controversial due to the discomfort and potential for injury it can cause.
Technique and Application
In practice, the can opener is typically executed from inside an opponent’s closed guard. The practitioner breaks any grips the opponent has, leans forward while keeping their elbows tight, and grabs the back of the opponent’s head with both hands. By pulling the opponent’s head into their chest, the pressure causes the opponent to open their guard, seeking relief from the discomfort.
Legality in Competition
The can opener is prohibited in most BJJ competitions, including those governed by the International Brazilian Jiu-Jitsu Federation (IBJJF). This is due to the high risk of cervical injury. Competitors are advised to check the rules of specific tournaments or gyms before attempting this technique, as it is often banned to ensure participant safety.
Reasons for Use
Despite its controversial nature, the can opener is sometimes used for several reasons:
- To inflict pain or discomfort as a last resort, particularly in self-defense scenarios.
- To force an opponent to open their guard during a grappling exchange.
- To elicit a reaction from the opponent, creating opportunities for other moves.
While effective, many practitioners consider it a “dirty move” due to its reliance on pain, and prefer less risky techniques to achieve similar goals.
Safety and Responsible Practice
Given the potential for injury, the can opener should be practiced with caution. Practitioners are encouraged to execute the technique slowly, with clear communication and consent from their training partners. Additionally, many academies emphasize the responsible teaching of this and other potentially dangerous techniques.
Countering the Can Opener
There are several ways to defend against the can opener:
- Stuffing the opponent’s head by positioning it below your own.
- Threatening with an arm bar on their exposed arms.
- Executing a hip escape to move your hips out from under the opponent.
Conclusion
The can opener remains a contentious technique within BJJ, particularly due to its potential for causing injury. While it has its place in self-defense and MMA contexts, many practitioners are wary of its use in sport BJJ. As safety continues to be a priority in BJJ, practitioners are urged to use this technique sparingly and responsibly.



