Professor Edson Oliveira demonstrates a collar choke from mount. The technique starts by inserting fingers into the opponent's collar and immediately shifting weight to that side while sliding the knee up to prevent being flipped. Edson maintains tight control with his foot on the opponent's hip and knee tight. He then seeks the opposite collar, using his forearm to open space and gain a tight grip. The choke is applied by driving the forearm into the opponent's neck and pushing the hip forward, using body weight for quick submission.