Professor Lucas Lepri teaches how to escape from the straight ankle lock while in the 50/50 guard. The opponent locks the straight ankle and controls his own collar. Lucas immediately starts to come up and places his free knee on the mat. He under hooks the opponent’s leg and controls the knee. In this scenario, the opponent reacts by hooking Lucas’ leg with his foot. Lucas immediately stands up and pushes down on the foot to remove the hook. He now pushes both legs down and steps back to escape.