Boxing in the 1950s beaten by Pérez), won Japan's first world title, and Hogan Bassey won the first belt for Nigeria. Popular American fighters in the 1950s proved legendary: Sugar Ray Robinson would still win (and lose) world titles, Rocky Marciano became the only heavyweight world champion in history to retire with perfect record. Jersey Joe Walcott the oldest heavyweight champion (until George Foreman regained the title in 1994), Archie Moore broke the all-time knockout record as well as the record for the oldest champion, at 48, for "any" division, Ezzard Charles proved to be a reliable substitute for Joe Louis as heavyweight champ,
Long count after being knocked down by Moore in their 1955 fight. In their 1965 rematch, Sonny Liston was knocked down by Muhammad Ali but, in the confusion that followed, Liston was down for more than 10 seconds before getting up and resuming the fight. At Nat Fleischer's prompting, referee Jersey Joe Walcott then stopped the fight 17 seconds after the knockdown. In a 1966 match, referee Billy Conn was accused of giving Carlos Ortíz a long count against Sugar Ramos, which led to a rematch being ordered. In February 1990, following James "Buster" Douglas' upset victory over Mike Tyson, Tyson's camp