Muhammad Ali:
Muhammad Ali (bornCassius Marcellus Clay Jr.; January 17, 1942 – June 3, 2016) was an Americanprofessional boxerand activist. Nicknamed “The Greatest”, he is regarded as one of the most significant sports figures of the 20th century and is often cited as the greatestheavyweightboxer of all time. In 1999, he was namedSportsman of the CenturybySports Illustratedand theSports Personality of the Centuryby theBBC. Born and raised inLouisville, Kentucky, he began training as an amateur boxer at age 12. At 18, he won a gold medal in thelight heavyweightdivision at the1960 Summer Olympicsand turned professional later that year. He became aMuslimafter 1961. He won the world heavyweight championship, defeatingSonny Listonina major upseton February 25, 1964, at age 22. During that year, he denounced his birth name as a “slave name” and formally changed his name to Muhammad Ali. In 1966, Ali refused to be drafted into the military owing to his religious beliefs and ethical opposition to theVietnam War and was found guilty ofdraft evasion and stripped of his boxing titles.
Mike Tyson:
Michael Gerard Tyson(born June 30, 1966) is an American formerprofessional boxerwho competed 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 to be one of the greatestheavyweightboxers of all time. He reigned as theundisputedworld heavyweight champion from 1987 to 1990. Tyson won his first 19 professional fights byknockout, 12 of them in the first round. Claiming his first belt at 20 years, four months, and 22 days old, Tyson holds the record as the youngest boxer ever to win a heavyweight title. He was the first heavyweight boxer to simultaneously hold the WBA, WBC and IBF titles, as well as the only heavyweight to unify them in succession. The following year, Tyson became thelineal championwhen he knocked outMichael Spinksin 91 seconds of the first round. In 1990, Tyson was knocked out by underdogBuster Douglas inone of the biggest upsets in boxing history.