Video: The Rock posts MMA training footage in preparation for role in 'The Smashing Machine'

Dwayne Johnson strapped on the boxing gloves and got to work as he prepares for an upcoming movie role.
The WWE star and actor has taken up MMA training as he prepares to play former UFC tournament champion Mark Kerr in a movie called “The Smashing Machine,” which will highlight Kerr’s life and career of Kerr.
“The Rock,” a longtime MMA fan who said he once contemplated the sport,  is seen working pads, as well as some ground game. He was humbled by the experie