Jamie Foxx bulks up, confirms Mike Tyson biopic is in the works.

The Academy Award-winning actor reveals details about his prep work for a film about the youngest heavyweight boxing champion in history.

The multi-talented Jamie Foxx has been talking about portraying former boxer Mike Tyson in a biopic for years.

Foxx, who won an Academy Award for best actor in his 2004 portrayal of Ray Charles, confirmed the upcoming film in an Instagram Live chat with Hollywood producer Mark Birnbaum.

Foxx has also disclosed that he has been bulking up his physique in preparation to play Tyson, the youngest heavyweight boxing champion in history.