In boxing, the undisputed champion of a weight class is the boxer who simultaneously holds world titles from all major organizations recognized by each other and the International Boxing Hall of Fame.
Wladimir Klitschko won the unified championship in 2008 and defended it 14 times
Muhammad Ali defended the unified/undisputed heavyweight championship 10 times; the record was unbeaten for 36 years
Mike Tyson the most iconic photo
Canelo Álvarez
Videos
Santos Saúl "Canelo" Álvarez Barragán is a Mexican professional boxer. He has held multiple world championships in four weight classes, from light middleweight to light heavyweight, including unified
Undisputed championship (boxing)
…Josh Taylor unified all four light welterweight titles in May 2021. Canelo Álvarez unified all four super middleweight titles twice in November 2021 and May 2025. Jermell Charlo unified all four light middleweight titles in May 2022…
Álvarez at Los Pinos, 2013