Professor Lucas Lepri teaches how to counter a single leg, by getting the arm triangle. The opponent shoots for the single leg and Lucas immediately slides his near side arm under the neck and to the opposite side armpit. He grips his hands together and kicks his foot down to make the opponent release the leg. While keeping pressure on the opponent, Lucas now slides his hand to his bicep to get in the arm triangle position. Lucas pushes the opponent down and turns to the side to flip the opponent over. From here, Lucas uses his top leg to apply pressure on the opponent’s arm as he finishes the arm triangle choke.