The Dwayne Johnson 21 Inch Gun Salute 21 Reps Biceps Finisher Some may be inclined to believe that genetics play a big role, others may credit the role of personal trainers, however the truth is that no one earned a The Rock Body without putting in relentless hours of hard work. More information Here: The Dwayne Johnson 21 Inch Gun Salute Dwayne ‘The Rock’ Johnson is respected among gym addicts world over for his incredible commitment to fitness. At 47 years old, his twenty one inch biceps are as…
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