Which athlete's product endorsement deal was revolutionary for including equity in the company rather than just payment, creating a model that many athletes now follow?

Product endorsements are a cornerstone of sports marketing, creating mutually beneficial relationships between athletes and brands. These partnerships can dramatically affect both sales and an athlete's personal brand. This trivia tests your knowledge about one of the most significant product endorsement deals in sports history that fundamentally changed how athlete-brand partnerships are structured and valued in the industry.

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Michael Jordan with Nike (Air Jordan)
LeBron James with Beats Electronics
Serena Williams with Nike
Tom Brady with Under Armour