# What is a can opener?

The can opener pulls your opponent's head toward their chest while in their closed guard, using your hands behind their head. It is uncomfortable and can open the guard but is considered a crank and is illegal in some competitions.

**[Read full answer on BJJ Notes](https://www.bjjnotes.app/knowledge-base/what-is-a-can-opener)**

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**Tags:** technique

**Source:** [BJJ Notes Knowledge Base](https://www.bjjnotes.app/knowledge-base/what-is-a-can-opener)