BJJ Against a Knife Attack

Keenan Cornelius and Miha Perhavec show the effectiveness (or lack of) of grappling against a knife wielding assailant

BJJ against a knife attack – Keenan Cornelius and Miha Perhavec show live scenarios

Keenan Cornelius and Miha Perhavec are highly decorated Brazilian Jiu-Jitsu practitioners with years of experience at the highest level. They recently shared a video showing a variety of scenarios where they attempt to use BJJ against a knife attack.

Keenan is a multiple world champion at black belt while Miha is a brown belt who has medalled at Nogi Europeans. He is one of my favourite BJJ personalities. Between them they share a huge amount of technical knowledge and applicable experience through Keenanonline – one of the best subscription based online resources I have come across. They have also recently opened Legion BJJ academy in San Diego. This has been of benefit to the entire BJJ community because Keenan has evolved from one of the best competitors in the world to a pioneering teacher of the art.

BJJ v knife attack

BJJ v Knife

In this video they share variations of attempting to use BJJ against a knife attack. The chemistry between the two make the video even more enjoyable. This is largely thanks to Miha’s deadpan sense of humour which is typically Central European. Combined with Keenan’s delivery which is typically Keenan – the video works on many levels because it is both funny as well as educational.

What should I do if someone has a knife?

Attempting to fight someone with a knife is an extremely dangerous situation which you should avoid at all costs. You will see and hear many martial arts practitioners who claim they have an effective system against a knife attacker. However in every possible situation the best move is always to get away and escape unharmed. This is because a single blow from a knife can often be fatal but would nearly always result in a life changing injury.

How common are knife attacks in the UK?

Knife attack - stats
Source: Home Office, year ending March. Figures exclude Greater Manchester.

There were 43,516 knife crime offences in the 12 months ending March 2019.

This is an 80% increase from the low-point in the year ending March 2014, when there were 23,945 offences, and is the highest number since comparable data was compiled.

These statistics do not include those from Greater Manchester Police because of data recording issues.

Out of the 44 police forces, 43 recorded a rise in knife crime since 2011.


If there are still any doubts on whether you should attempt to use BJJ against a knife attack – or any other weapon – here is one of the best instructionals available. Thanks to Garvin Snell for sharing this.

If you like this article please check out one of my other articles – 10 tips for getting started in Brazilian Jiu-Jitsu

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