supine while standing over the opponent, steps in front of the opponent's arms, and either remains standing or falls backwards, stretching the legs back. A single leg variation, also known as a Stump Puller, involves only one of the opponent's legs being stretched. A figure-four leglock variation exists as well. This move can be used as a pin as well as a submission maneuver. Over-the-shoulder single leg Boston crab Also commonly known as a Stretch Muffler, this move sees the wrestler stand over a face-down opponent lying on the ground and lift one leg of the opponent and drapes it over the wrestler's own shoulders. The wrestler then uses their arms to force the shin and thigh of the opponent down, thereby placing pressure on the opponent's knee. An arm-trap version of this move exists, where the wrestler locks one of the opponent's arms between the wrestler's legs and performs the move either sitting or kneeling on the ring mat the whole time as opposed to standing. This move can best be described as a Torture Rack applied to a single leg. Brock Lesnar briefly used this as the Brock Lock. Reverse Boston crab Not to be confused with the inverted Boston crab, this move is executed by an aggressor standing over a face-down opponent facing in the same direction. From there the aggressor take each of the opponent's leg under each arm. With both legs under each armpit, they push down, putting pressure on the knees & lower back of the opponent. Colt Cabana calls it the Billy Goat's Curse, referencing his Chicago-area heritage. Rocking horse This Boston crab variation sees the wrestler lock the opponent in a standard version of the hold before lifting them off the ground by their arms (while still in the hold), and rocking them back and forth, putting additional pressure on their back. Single leg Boston crab Also known as a half Boston crab or a half crab, a move that typically starts with the opponent on their back, and the attacking wrestler standing and facing them. The attacking wrestler hooks one of the opponent's legs under one of their arms, and then turns the opponent face-down, stepping over them in the process. The final position has the dominant wrestler in a semi-sitting position and facing away from the opponent who is lying face-down and their own leg bent backwards toward their head.