How Venus and Serena Williams' first endorsement deals proved to be game-changing
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Serena Williams Net Worth: Breaking Down Career Earnings, Sponsorships and More | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
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
Nike learned from their pregnancy mistake, says Williams | Reuters
Venus Williams Vs. Serena Williams: Their Early Days in Tennis – Footwear News
Dangerous When Interested - The New York Times
Serena Williams' Endorsements: 5 Fast Facts You Need to Know | Heavy.com
Serena Williams Will Keep Breaking Barriers With Nike Long After She Steps Off Court – Sportico.com
Tennis: Serena Williams partners with Nike to create her own designs | Marca
Serena Williams' Best Tennis Outfits of All Time | Glamour