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The 'xXx' actor shows off on Instagram.
The ‘Guardians of the Galaxy’ actor shows off how he gets jacked.
Break the typical cycle for locked and loaded bi's and tri's.
How the actor transformed into a muscular marvel.
His most monstrous moments.
Hart hustles hard when he's training.
His most heroic workout moments.
He taught Felicity Jones to kick ass in Rogue One.