What do Peyton Manning and Kobe Bryant have in common? You can probably answer this pretty easily. They’ve both led their respective teams to the championship multiple times. They’ve been MVPs of their leagues. They are both known and admired for their remarkable longevity. And they both retired this year.
They clearly have a lot in common, but there’s one thing you might not have thought about. They both got stem cell therapy to heal their injuries and let them continue to play. Neither wanted to end their careers, so they tried something new.