Mikael Salomon from The Andromeda Strain is being reported to be attached to Undefeated: The Rocky Marciano Story, the first unauthorized biopic about the boxing champion.

The film will follow the famed boxer from his childhood to his 1969 death in a plane crash. It promises never-before-revealed details provided by the fighter’s younger brother, Lou Marciano.

Terri Apple’s screenplay powers the film which is being produced by Morris S. Levy for MEGA Films.