BOXING has not had an undisputed world champion since Bernard Hopkins held all four major middleweight titles in 2005.
There have been countless unified champions who have held several belts at the same time, but since Hopkins no one has been able to keep the IBF, WBA, WBO and WBC happy all at the same time.
In most divisions, it is clear who is top dog but no fighter on the planet currently owns every major belt up for grabs in his division. At middleweight, Gennady Golovkin has three and desperately wants them all. Anthony Joshua holds two heavyweight titles and has his sights set on the others.