Which athlete's signature shoe deal became the first to generate over $1 billion in annual revenue for its brand?

Product endorsements have revolutionized the sports industry, creating iconic partnerships between athletes and brands. These collaborations have generated some of the most valuable signature product lines in history, transforming both athletic performance and fashion. Test your knowledge of the most lucrative and influential athlete endorsement deals that changed the game both on and off the field.

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Michael Jordan (Nike Air Jordan)
LeBron James (Nike LeBron)
Cristiano Ronaldo (Nike Mercurial)
Stephen Curry (Under Armour Curry)