Ezzard Charles (1921–1975) was the undisputed heavyweight champion of the world and one of the most technically refined fighters in boxing history, often overlooked due to the eras surrounding him.

Career Highlights

• Professional record: 96 wins, 58 by KO, 25 losses, 1 draw
• Undisputed heavyweight champion from 1949 to 1951
• Defeated former champion Joe Louis and went 15 grueling rounds with Rocky Marciano twice

Charles fought an extraordinary range of elite competition across weight classes and is frequently cited by historians as one of the most underrated champions in the sport's history.

Reference:

Wikipedia: Ezzard Charles

https://en.wikipedia.org/wiki/Ezzard_Charles