Spite is not just for kids with broken toys. Many adults have gone to unbelievable lengths to pay back someone who did 'em wrong. Here are 10 classic examples.
Roy Jones Jr. says IBF welterweight champion Jaron 'Boots' Ennis could prove to be a "very difficult fight" for the 36-year-old Terence Crawford at this stage
Former unified welterweight champion Errol Spence Jr. is viewed as damaged goods by fans, seen as shot to pieces after his loss to Terence Crawford last July