An uppercut is a type of punch used in boxing and other combat sports. It is delivered by swinging the fist upward, targeting an opponent's chin or jaw. This punch can be very effective, especially when an opponent is leaning forward or is off-balance, as it can generate significant power and potentially lead to a knockout. Uppercuts can be executed with either hand and are often used in combination with other punches. Boxers like Muhammad Ali and Mike Tyson are known for their powerful uppercuts, which have played a crucial role in their fighting styles. Proper technique is essential to maximize the punch's effectiveness while minimizing the risk of injury.