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
IWA Undisputed World Heavyweight Championship IWA Undisputed World Heavyweight Championship The IWA Undisputed World Heavyweight Championship is a professional wrestling world heavyweight championship that is contested in Puerto Rico. It originally appeared within the titular professional wrestling promotion, the International Wrestling Association. The championship was established in 2000, as the IWA World Heavyweight Championship. On December 15, 2007, Scott Hall failed to attend a titular defense which led to the fictional local boxing and wrestling commission's decision to vacate the WWC Universal Heavyweight Championship and award it to the number one contender who at the moment was Miguel "Biggie Size" Maldonado. On December 30, the