In martial arts, the act of imbalancing your opponent, pushing or pulling his lower leg with your foot or shin, so that he falls to the floor. In order to score a point with this technique, you must also strike; simply sweeping your opponent will not be counted as a point. You must be able to control your opponent's fall. Many tournaments and martial arts schools do not allow sweeping in lower ranks. Sweeps to the inside of the leg are dangerous as they may result in injury to the knee. The best time to sweep is when your opponent is setting a foot down, but has not yet put his weight fully on it.