The Berkut BJJ invitational is putting together an amazing card with 13 elite level submission only matches. The event will be held in Moscow, Russia on November 21st. The Berkut organisation were able to invite some of the biggest grappling stars in the world. This card is arguably the greatest card ever assembled for … Continue reading Meet Mairbek Khasiev The Chechen Businessman Behind Berkut Jiu-Jitsu Invitational