George Chuvalo
George Louis Chuvalo, also known as Jure Čuvalo CM (born September 12, 1937) is a retired Canadian heavyweight boxer who was never knocked off his feet in ninety-three professional fights between 1956 and 1979. He is often considered to have had the greatest chin in the history of boxing and to be one of its most durable fighters. He was Canadian heavyweight champion as both an amateur and a professional, and twice fought for versions of the professional world's heavyweight title. He had a long career and fought nearly all the top fighters in the heavyweight division.
Read more about George Chuvalo: Early Life and Career, Versus Patterson, The Two Ali Fights, Versus Frazier & Foreman, Plus Other Fights, Beats Quarry and Jones, Versus Two Other World Champions, Personal Life, Tributes and Other Appearances, Professional Boxing Record