It's called nerve damage.
no way that this photo is real.
the symmetry is too perfect.
if it was real, then you'd see this guy's chest and lats would be out of balance with the other side..either bigger to compensate for the arm or much smaller because the arm simply cant hold the bar.
also, nerve damage for forearms, bis, tris AND delts all on the one side at the same time?!!
it usually occurs in the odd muscle group due to some trauma or infection and if infection its usually down one side only.
even the leanness isnt mirrored- IF he had nerve damage you'd still see his bodyfat very low on that arm and it'd have veins and muscle visible.
bodyfat isnt restricted by nerve damage.
its a fake for sure.
