PGA legend Gary Player has always been an athletic guy, but at 81-years old, he takes fitness to a whole new level. Player—one of the greatest golfers of all time—posted a video to his Instagram Wednesday, proving he's still got it... and then some.  

He did a little tread' shred (find out 9 ways you can max out your treadmill workouts). And we'll admit: We're impressed.

No mile splits to speak of, but consider this your PSA to get up, hit the gym, or pound the pavement today.

If you want to be among the old-man ass kickers who get stronger and fitter with age, read this. And follow Player's advice: Keep working. Keep moving.