An uppercut is a type of punch used in boxing and other combat sports. It is delivered by moving the fist upward in a vertical motion, targeting an opponent's chin or jaw. This punch can be particularly effective when an opponent is leaning forward or is in close range, as it can catch them off guard and deliver significant power. Uppercuts can be executed with either hand and are often used in combination with other punches. Boxers like Muhammad Ali and Mike Tyson have famously utilized uppercuts in their fights, showcasing the punch's potential to knock out opponents when timed correctly.