Kōsa

With this technique, the user is able to intercept and counter an oncoming taijutsu technique by raising the knee, and driving the elbow downwards at the same time. This catches the attacking limb between his two limbs, and drives the elbow down with great force, effectively shattering the bone. Genshō used this technique while disguised as Konohagakure ninja Yagura to "break" Rock Lee's Leaf Whirlwind by intercepting Lee's attacking leg. Even though Lee's ankle was not broken due to protection from his ankle weight, he was forced to completely halt his training until the injury was healed.