One underappreciated star achieved a feat once reserved for tennis legends — and she’s still active on the tour today.

During the height of Serena and Venus Williams ’ dominance, even defeating one of them was considered a career-defining achievement. Their power, intelligence and championship experience turned each match into a monumental challenge for anyone standing across the net.

Yet in an era filled with elite competitors and Grand Slam champions, only a small group ever managed to beat both sisters in the same tournament — a list featuring icons such as Justine Henin , Kim Clijsters and Martina Hingis. What few fans remember is that the final player to accomplish this rare double wasn’t one of those household names.

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Pliskova becomes the

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