Marcelo advances to Single-Leg X in response to a counter: If your opponent decides to stand up in time to stop your Collar & Elbow Control Hook-Sweep from Butterfly-Guard, oftentimes you can take advantage of the newly opened space underneath by climbing yourself directly into the 1-Leg X-Guard. Swing your outside-leg around to capture their hip with your heel as you elevate your hips and surround their thigh. Release your grip on their elbow and cup around own thigh to prevent your opponent from escaping their ankle from your armpit. Use the pinching from your knees to help off-balance your opponent's base so that you can direct their fall towards the outside and rise up on top for the basic 1-Leg X-Guard Sweep.