Gary Player is 81 years old. We thought we'd remind you before showing you the following video.
Player, the golf Hall of Famer, posted a video of himself sprinting on a treadmill and putting the rest of us to shame.
"It's important to train your mind and your body to move fast as you age," Player wrote. "Don't give yourself limits. Keep working. Keep moving."
That type of training definitely helps Player stay competitve, such as the time one year ago when he hit a hole-in-one (the 31st of his career) at the Masters Par 3 contest.
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