Which athlete's product endorsement deal is credited with creating the first billion-dollar signature shoe line, transforming both athletic footwear retail and celebrity endorsement models?

Celebrity product endorsements can transform brands and create cultural phenomena. In the world of athletic footwear, certain partnerships between famous personalities and brands have revolutionized the retail landscape, creating entire product ecosystems and reshaping marketing strategies. This poll tests your knowledge about one of the most financially successful celebrity endorsement deals in retail history.

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Michael Jordan (Nike Air Jordan)
LeBron James (Nike LeBron)
Cristiano Ronaldo (Nike CR7)
Serena Williams (Nike Court)