BROCKTON ― Louis "Sonny" Marciano who was a husband, a father, a semi-pro baseball player, businessman and the younger brother of Rocky Mariano − the only undefeated heavyweight champion of the world, ...

Became the youngest heavyweight champion in boxing history at the age of 20. Earned an estimated $400 million in career ring ...

Rocky Marciano had two goals in mind while growing ... The odds of Marciano succeeding in boxing seemed about the same as him reaching the major leagues. He was a crude, barroom-brawler type.

Rocky dreamed of becoming a professional baseball ... After retiring from professional boxing, Marciano focused on managing the investments he made with his boxing earnings. He also worked for ...