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
Derek Minter a farm labourer to earn the extra money needed to buy his first bike in 1948, a 350 cc BSA which he also used for trials riding. After National Service in the Royal Air Force, Minter worked for motorcycle dealer Ray Hallet at Hallets of Canterbury. Hallet had been a road race and grass track rider and Minter accompanied him to the Isle of Man as his mechanic for the Manx Grand Prix. Hallet provided Minter with a CB34 500 cc BSA Gold Star which was prepared for racing and stripped of unnecessary weight, but retained the standard, roadster-based equipment