is African-American former professional boxer who competed in boxing from 1985 to 2005. Nicknamed “Iron Mike” and “Kid Dynamite” in his early career, and later known as “The Baddest Man on the Planet”, Tyson is considered one of the best heavyweights of all time. He reigned as the undisputed world heavyweight champion from 1987 to 1990 and was the first heavyweight boxer to simultaneously hold the WBA, WBC and IBE titles, as well as the only heavyweight to successively unify them.