Michael Gerard Tyson (born June 30, 1966) is an American professional boxer who competed from 1985 to 2005, and is scheduled to compete once again in 2024. Nicknamed "Iron Mike" and "Kid Dynamite" in his early career, and later known as "the Baddest Man on the Planet", Tyson is regarded as one of the greatest heavyweight boxers of all time. He reigned as the undisputed world heavyweight champion from 1987 to 1990. Tyson won his first 19 professional fights by knockout, 12 of them in the first round.
https://en.wikipedia.org/wiki/Mike_Tyson