From 1970: Muhammad Ali vs. Oscar Bonavena in a heavyweight bout in New York. Ali scored a 15th-round TKO to defeat the Argentinian.
From 1986: Mike Tyson vs. Jesse Ferguson in heavyweight action. Tyson beat Ferguson on a sixth-round TKO in Troy, N.Y.
From 1975: Muhammad Ali vs. Chuck Wepner in Cleveland. Ali scored a 15th-round knockout just 16 seconds from the final bell in the fight that inspired the “Rocky” screenplay.
From 1985: Mike Tyson vs. Michael Johnson in heavyweight action in Atlantic City. Tyson blasted Johnson with a first-round KO.
From 1966: Muhammad Ali vs. George Chuvalo in a world heavyweight title bout in Toronto. Ali retained his title with a 15-round decision.
From 1970: Joe Frazier vs. Jimmy Ellis in New York for the world heavyweight title. Frazier won the belt with a fifth-round TKO.
From 1975: Muhammad Ali vs. Joe Frazier in their third meeting, the “Thrilla in Manila.” Ali won the brutal battle via TKO when trainer Eddie Futch didn't allow Frazier to come out for the 15th round.
From 1971: George Foreman vs. Luis Faustino Pires in a heavyweight bout in New York City. Foreman won the fight on a fourth-round TKO.
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