Which celebrity's endorsement deal with Nike created the most financially successful athlete-branded product line in history, revolutionizing sports marketing?

Celebrity endorsements can transform products and establish iconic brand identities. Some partnerships between famous people and products become so successful that they define marketing history and create lasting retail legacies. Test your knowledge about these powerful celebrity-product relationships that changed retail marketing strategies forever!

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