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10Angelique Kerber - Career Winnings: $5.4 million

This German-born, Poland-based tennis star is currently ranked ninth in the world, and the 25-year-old’s track record already speaks for itself. Since Angelique Kerber turned professional 10 years ago, she has won three singles titles on the WTA tour, as well as reaching the semifinals of the 2011 US

Open and the 2012 Wimbledon Championships. On top of that, she’s made the ITF finals 11 times. Peaking at fifth in the world last year, there is still plenty more to come from Kerber, and her endorsement deals have come through Adidas for her outfits, and Yonex for her rackets.

Next 9 Sara Errani - Career Winnings: $7.8 million

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