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What Coco Gauff Is Doing to Fix Her Serve at the U.S. Open

One of the great, gripping rivalries in 2025 women’s tennis is here, as Coco Gauff is pitted against her recalcitrant serve. The 21-year-old American struggled for the first five months of the year, ...

Coco Gauff is fixing her serve to start the U.S. Open – and the rest of her tennis career

But then Gauff learned that MacMillian, a Canadian educated in America and based in South Africa, was available. And then her ...