Kurt Osiander’s Move of the Week – Double Under Defense

This week Kurt lets Julian show us the Double Under Defense. This is an important defense and allows you to pull a triangle from Double Under. Originally Published: September 29, 2016 Kurt Osiander has been studying under Ralph Gracie for over 17 years. He received his black belt in 2002 and is one of the … Read moreKurt Osiander’s Move of the Week – Double Under Defense