They Made Me a Criminal

• 1939 crime drama starring John Garfield as a newly-crowned world champion boxer who flees from New York to Arizona after believing he committed a murder while drunk. He finds work with a bunch of young boys (The Dead End Kids), while a New York detective hunts him down. (There is only a small bit of boxing at the beginning, a little training session in the middle, and a longer fight scene -- filmed in Jeffries Barn in Burbank, Calif. -- at the end of the movie.)
• This was a remake of the 1933 film "The Life of Jimmy Dolan"
• IMDb link