James Harrison is 39-years-old, but don't let his age fool you, the man can still ball out on the gridiron.
One of the biggest reasons why Harrison has been able to last long in the NFL is his incredible dedication to working out so he can stay fit and strong.
Harrison does all kinds of unique workouts, including this bench press with chains that he implored everyone not to try because it could be very dangerous.
You can see why Harrison warns everyone not to try, and we'll do the same, DO NOT TRY THIS.
Harrison is an absolute beast and the video above isn't the only one that proves that.
Although he didn't get a single snap in Week 2, it's only a matter of time before he makes a big play for the Steelers like he has multiple times in his career.
(H/T: FTW)
