Serena Williams plans to retire from tennis after U.S. Open to focus on family, business

The 40-year-old champion announced her plans to retire following this month's U.S. Open to focus on her family and business.All the news you need to know, every day.

The 40-year-old champion announced her plans to retire following this month's U.S. Open to focus on her family and business.All the news you need to know, every day

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