In this segment of the Gracie breakdown (featuring CM Punk), the Gracie Brothers will explain Luke Rockhold’s one-handed guillotine that was used against Michael Bisping this past weekend. As most MMA fans know the one hand guillotine is very rare and not often used in MMA contests, so to see this in an UFC fight was quite a treat, regardless if you were a Michael Bisping fan or a Luke Rockhold fan.