Rocky Balboa is loosely based on this American former professional boxer who fought at heavyweight ans was born in what year
Chuck Wepner Charles "Chuck" Wepner (born February 26, 1939) is an American former professional boxer who fought at heavyweight. As a world ranked contender he fell just seconds short of a full fifteen rounds with world heavyweight champion Muhammad Ali in a 1975 title fight. Wepner also scored notable wins over Randy Neumann and Ernie Terrell.
William Michaels William Mayes Michaels (July 13, 1876 – 1934) was an American professional heavyweight boxer who competed in the early twentieth century.