Which athlete's signature shoe line is credited with generating over $5 billion in sales for Nike by 2022, making it the most commercially successful athlete-endorsed product line in sports retail?

Brand ambassadors have become crucial to sports product marketing strategies. Athletic footwear companies in particular have revolutionized the practice of celebrity endorsements, often seeing dramatic sales increases when popular athletes represent their products. This trivia question explores one of the most financially successful brand ambassador relationships in sports retail history.

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

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