Zac Efron Gets Shredded to Work With The Rock

Hanging On

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This obstacle requires genuinely strong upper body and forearms.

Pulling Up

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Efron takes his pullup practice seriously, flashing some serious lats.



Shoulder Width

 

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All that shoulder training with Johnson paid off. Zac sporting a sculpted arm.

Steady hold

 

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Just look at those biceps. Only a bodybuilder like Johnson can blow up such huge guns.

 



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