Ancient Greek wrestling
Leontiskos was an Olympic wrestling champion in 456 and 452 BC. Although rules against breaking an opponent's fingers were made in the 6th century BC, Leontiskos won by using just this very tactic. Milo of Croton was another Olympic herothe only wrestler to win five Olympic championships. He was defeated in his sixth attempt when he was forty.  The Olympic wrestler Polydamas was killed when he tried to hold up the roof of a cave during an earthquake.