Coco Gauff has split with a key coach on the eve of the U.S. Open. Gauff, the world No. 3, has parted ways with grip expert Matt Daly, who she hired at the end of last year’s U.S. Open to strengthen her serve and forehand, two of the most important shots in tennis. She has now brought on Gavin MacMillan, a biomechanics specialist who helped rescue world No. 1 Aryna Sabalenka’s serve. MacMillan was on court with Gauff during practice at the Billie Jean King Tennis Center Wednesday, alongside her
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https://sports.yahoo.com/article/coco-gauff-splits-key-coach-160104714.html
