3. Herschel Walker

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With a decorated football career behind him, Herschel Walker showed no signs of slowing down. After his hanging up his cleats, he decided to give MMA a shot, winning two fights.

4. Babe Didrickson

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Babe Didrickson is one of the most decorated female Olympic athletes of all time. But golf was her true passion, and over the course of her career she racked up over 80 tournament wins… Incredible!