The Heavyweight Championship of the World
An exclusive BBC Sportsnight recording of today's title fight by satellite from New York.
Muhammad Ali, the Champion v Ken Norton, one of the only two boxers who have beaten Ali.
This third Ali/Norton match - like the stirring Ali/Frazier fight a year ago - gives the 34-year-old champion the chance to set the record straight. In 1973 Norton broke Ali's jaw and outpointed him in one of boxing's greatest upsets. Ali won the revenge return on points with one of the best final rounds of his career. Now in Fight Three can Ali finally dominate Norton as he did Frazier - or will there be a new champion?
Ali's 20th title fight in 12 years takes him for the first time to the nostalgic venue of the open-air Yankee Stadium - stage for famous champions like Tunney, Louis and Marciano - and now at last, for arguably the greatest of them all - Muhammad Ali.