How Venus and Serena Williams' first endorsement deals proved to be game-changing
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The little-known story of Serena Williams' first endorsement deal
Serena Williams Earned a $55 Million Payday for Endorsing an Athletic Apparel Giant
Front Office Sports on Twitter: "Within five years of turning pro, both Williams sisters were earning over $2M per year. Their marketability opened the endorsement floodgates ✍️ In 2000, Venus signed a