Ralph Giordano, better known as Young Corbett III, was an Italian-born American boxer. He was the World Welterweight Champion in 1933 and the NYSAC Middleweight champion in 1938. A tough southpaw, he did not have strong punching power but was known for his great speed and determination. Corbett is considered one of the greatest southpaws of all time and one of the all-time great counterpunchers. He was inducted into the Fresno County Athletic Hall of Fame in 1959, the Italian American Sports Hall of Fame in 1982, and the International Boxing Hall of Fame in 2004.

In boxing and some other sports, a southpaw stance is where the boxer has the right hand and the right foot forward, leading with right jabs, and following with a left cross right hook. It is the normal stance for a left-handed boxer. The corresponding boxing designation for a right-handed boxer is the orthodox stance, which is generally a mirror-image of the southpaw stance. In American English, "southpaw" generally refers to a person who is left-handed.