This video explains the x guard pass defense to matrix back take bjj technique.

Tommy Langaker and Espen Mathiesen are two highly regarded Norwegian black belts. This is an excerpt from their new series VIKING GUARD available exclusively from

Europe’s TOP black belts are here to give you the guard of a VIKING!
Tommy Langaker and Espen Mathiesen have been tearing up the international competition scene with superior guard work and incredible back takes.