Overcoming the seemingly insurmountable odds that life threw his way, Liston became heavyweight champion of the world when he knocked out Floyd Patterson in 1962. Eight years later, he died but friends questioned the cause of his death.

Credits

Simon GeorgeDirector

Sven RuygrokEric Ducharme

D. David MorinAsh Resnick

Sonny ListonSelf (archive footage)

Mike TysonSelf