Which athlete's groundbreaking endorsement deal included an unprecedented equity stake in the brand, creating a model that changed how sports endorsements work?

In the world of sports marketing, athlete endorsements have transformed how brands connect with consumers. Some deals have completely changed the industry landscape, setting new standards for athlete-brand partnerships. This trivia question explores one of the most revolutionary endorsement deals in sports history that altered how brands approach sports marketing and athlete partnerships.

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Michael Jordan with Nike, receiving royalties for every Air Jordan sold, creating the first signature shoe line with revenue sharing
LeBron James with Beats by Dre, receiving a small equity stake that reportedly netted him $30 million when Apple acquired the company
Tiger Woods with Nike Golf, securing a guaranteed income regardless of performance, introducing performance-independent endorsements
Serena Williams with Puma, negotiating the first female athlete signature line with creative control over product design and marketing