Undisputed champion he was still described as "undisputed champion" by some reports. After Joe Calzaghe's super middleweight victory over Mikkel Kessler in November 2007, he was frequently described as "undisputed champion". Others disputed this, because although he held the WBA, WBC, and WBO belts, he vacated his IBF title in November 2006 rather than face a mandatory challenger, and immediately vacated other titles as well. The unified champion is defined as a boxer that holds at least two world championships of major sanctioning bodies (WBA, WBC, WBO or IBF) in their respective division. Around 2004, the World Boxing Association recognized three different
Octuple champion Octuple champion In boxing, an Octuple Champion is a boxer who has won major world titles in eight (8) different weight classes. Manny Pacquiao is the only boxer to win twelve (12) major world titles in eight (8) different weight divisions. Pacquiao clinched the feat when he defeated Antonio Margarito via a unanimous decision to win the WBC super welterweight title on November 13, 2010 at the Cowboys Stadium, Arlington, Texas, USA. Nine (9) of his world championships came from the "Big Four" (WBA, WBC, IBF, WBO) sanctioning bodies and three (3) were from "The Ring". He also won the