Dwayne Johnson stars as former wrestler and UFC star Mark Kerr in a new trailer for Benny Safdie's "The Smashing Machine."

The trailer for 'The Smashing Machine,' a biopic on MMA star Mark Kerr, that stars The Rock was dropped by The Great One himself on Tuesday morning. The Rock to

Dwayne "The Rock" Johnson's signature tattoos and bald head are nowhere to be seen in the first trailer for A24's upcoming biopic about a legendary athlete. In "The Smashing Machine,"Johnson transforms into mixed martial arts (MMA) and Ultimate Fighting Championship (UFC) fighter Mark Kerr,