Professor Lucas Lepri demonstrates how to escape and counter a body triangle from back control by prioritizing neck defense and shifting weight toward the side of the lock. By stepping his leg over the opponent’s feet and bridging his hips, Lucas creates a powerful leg lock counter that forces a submission or an immediate release. If the opponent unlocks their legs to avoid the pressure, Lucas quickly drives his elbow inside the space, clears his hips, and transitions to a dominant top position or side control.