Career
Mitchell was defeated in the 1977 112 lb Sub-Novice Championship by Gino Gelormino. Mitchell trained at the Morrisania Youth Center in 1977 and 1978. In 1979 and 1980 Mitchell trained at the Fort Apache Boys Club.
Both Gyms are located in the Bronx, New New York
In the bout, Mitchell was DQ"ed for illegal use of his head The result was initially listed as a technical decision for Nati amidst a lot of controversy, but finally ended up being ruled a DQ. Mitchell retired in 1995 after being knocked out by Erik Morales.