Professor Lucas Lepri shows how to do the knee bump takedown when he and the opponent are fighting for the under hooks. Lucas and the opponent both have the under hooks. Lucas steps to the side opposite to the under hook of the opponent and locks his hand together trapping the arm. He uses his near side knee to push on the back of the opponent’s same side knee. As he pushes the knee he also uses his hips to bump the opponent and take him down. Lucas ends the position in the side control.