FILE - In this April 1985 file photo, Marvin Hagler, right, and Thomas Hearns fight during the first round of a world championship boxing bout in Las Vegas. Sugar Ray Leonard, Roberto Duran, Thomas Hearns and Marvelous Marvin Hagler delivered when it mattered, and two of the fights are considered to be among the greatest ever. A four-hour documentary, "The Kings" explores the magical decade. (AP Photo, File)