I like boxing, I wouldn't say I'm the biggest boxing fan but I do like to watch from time to time. What gets me in boxing is there are too many weight classes, too many organizations, and too many belts. I honestly don't know the difference between WBC, IBF, WBA and the WBO. How come there can be different champions? Couldn't there just be 1 unified champion? Or are boxers under contracts between the different organizations?