Dwayne ‘The Rock’ Johnson gained a noticeable amount of muscle mass for his role in 'The Smashing Machine' Dwayne "The Rock" Johnson maintains his muscular body through a mix of diet and exercise At a ...
The 53-year-old, who plays an MMA fighter battling opioid addiction, has been garnering Oscar buzz for the drama, based on the life of Mark Kerr. But it was his slimmed-down physique that really got ...