Dwayne Johnson is soon heading to theaters in what might be the most dramatic role of his career so far. In “The Smashing Machine,” Johnson will play MMA and UFC fighter Mark Kerr, who was the subject of a 2002 HBO documentary that chronicled his substance abuse and explored the brutality of the sport to which he’d dedicated his life.

A24 has shared the first trailer and a poster for The Smashing Machine, the biographical sports drama from writer-director Benny Safdie which sees Dwayne Johnson swapping the squared circle for the octagon to play UFC fighter Mark Kerr.