Coco Gauff was as aware as anyone, of course, that her tour-worst double-fault total is a significant problem, so she fired one of her coaches on the eve of the US Open and brought aboard the serve doctor who helped No.

Por supuesto, Coco Gauff era tan consciente como cualquiera, de que su total de dobles faltas, el peor del circuito, es un problema significativo. Por

Coco Gauff turns to a biomechanics expert, who helped rival Aryna Sabalenka overcome her serving troubles, on the eve of the US Open.