13 – Serena Williams

Serena Williams is an American professional tennis player. She has been ranked singles world No.1 by the Women’s Tennis Association (WTA) for 319 weeks, including a joint-record for 186 consecutive weeks, and she finished as the year-end No. 1 five times. She has won 23 Grand Slam singles titles, the most by any player in the Open Era and the second-highest number of titles won of all time. She is currently No.240 in the WTA ranking and is possibly in the final years of her career. However, her legacy will prevail as one of the best tennis players of all time.

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