A former professional boxer who reigned as the undisputed world heavyweight champion for three years, Mike Tyson is considered a colossal figure in boxing. Claiming his first heavyweight title at the young age of 20, he went on to become one of the best heavyweights of all time. Also a controversial person, he was once imprisoned on rape charges.
Julio Cesar Chavez is a Mexican former boxer who won several world championships in three different weight divisions. He also holds several records, such as the most successful world title defenses and most title fights. He has been named in ESPN's 50 Greatest Boxers of All Time list and was made an inductee of the International Boxing Hall of Fame.
Acknowledged by his rivals as a remarkable hitter, Jack Dempsey was an American heavyweight boxing champion who was known for his powerful punches. The record attendance at his bouts was an indication of his popularity. He was considered as one of the greatest fighters of all time. Born poor and nicknamed Kid Blackie, Jack Dempsey went on to become one of the richest athletes during his time.