Kobe Bryant Joins the Athlete-Entrepreneur Hall of Fame

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Derek Jeter, New York Yankees

With a fortune estimated at around $250 million, Jeter, the ex-Yankee, started Jeter Publishing for adult non-fiction, middle grade, and children's books in 2013. He also invests and serves as brand emissary for a startup called Luvo, which sells ready-made meals for the health-conscious.