Derrick Henry is proving once more he's superhuman ... showing off a pair of biceps on Wednesday that'd make even the biggest pro bodybuilder envious.
It was apparently arm day for the NFL superstar on Wednesday ... and in a video of his sweat sesh posted by his trainer, you can see the running back had a whole lot of bis and tris to work out once he got in the gym.
Henry -- sans shirt -- got a pump in through various different exercises ... including a bunch of curls with heavy weights -- and some pushups with a plate on his back.
Of course, seeing Henry toss around iron is nothing new ... the 6-foot-3, 247-pound tailback has been putting his freakish ability on display since high school -- but given his current situation, this feels just a little more significant.
If you weren't aware, the former Heisman Trophy winner is slated to be a free agent when the new league year kicks off next week. And, normally, that'd mean good things for him, as he'd be in line for a huge payday.
But, with 2,030 carries on his resume already ... some have wondered just how much is left in the tank for the 29-year-old.
Workouts like these will go a long way to answering those questions -- something we're sure was not lost on Henry when he clicked the "share" button on the vid.