Ali, This Day in Boxing Muhammad Ali Suffers Broken Jaw in Loss to Ken Norton This Day March 31, 1973 SteveMarch 31, 2020, 8:43 pmMarch 31, 2020 404 Facebook Twitter Muhammad Ali Suffers Broken Jaw in Loss to Ken Norton This Day March 31, 1973 Muhammad Ali 221 lbs Ken Norton 210 lbs SD 12 Sports Arena, San Diego Referee: Frank Rustich 4-7 Judge: Hal Rickards 4-5 Judge: Fred Hayes 6-5 NABF Heavyweight Title Previous ArticleGeorge Foreman KOs Ken Norton This Day March 25, 1974 Heavyweight TitleNext ArticleSugar Ray Leonard Spectacular KO vs Dave ‘Boy’ Green This Day March 31, 1980 Welterweight Title