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 Bravo defended the IWA and DWE championships in Panama, defeating El Cuervo as part of a Revolution X-Treme Wrestling card. On November 1, 2009, Bravo and the incumbent WWC Universal Heavyweight Champion, Shane Sewell, performed in a DWE event, with the DWE Dominican National Championship being held up after the creative team booked a no contest. This marked the first instance that the two major champions worked together while holding full recognitions by both promotions. At Summer Attitude 2011, Chris Angel defeated Hiram Tua to become the first undefeated Undisputed World Champion. He went on to defeat all contenders, one