After he returned an interception 100 yards for a touchdown in Super Bowl XLIII, we should know James Harrison can accomplish things most mere mortals would deem impossible. Following a one-season stint with the Cincinnati Bengals in 2013 and a short-lived retirement, the longtime Pittsburgh Steelers linebacker returned to the team he won a pair of Lombardi Trophies with due to a rash of injuries at his position.

Evidently, Harrison stayed in good shape during his brief time away from the game as evidenced by an Instagram post from Steelers offensive lineman Marcus Gilbert (Warning: Video contains NSFW language in the background) featuring the 6-foot, 275-pound Harrison doing push-ups while 6-foot-4, 304-pound starting center Maurkice Pouncey is sitting on his back!

Perhaps the 36-year-old Harrison was inspired by his two-sack, seven-tackle performance in a 43-23 victory over the arch rival Baltimore Ravens (in a contest that was par for the course between the AFC North foes) on Sunday Night Football that belied his age. Or maybe the dude is just a straight-up beast. Either way, his weight room display at the Steelers facility was impressive.

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