Coco Gauff has reportedly fired her coach less than a week before the start of the U.S. Open at Flushing Meadows.

Gauff parted ways with coach Matthew Daly, according to D’Arcy Maine of ESPN . Daly confirmed this to tennis journalist Ben Rothenberg , saying the change had been made “recently.”

Gauff retained her other coach, JC Faurel, and has also brought in biomechanics coach Gavin MacMillan as part of her team. MacMillan previously worked with Aryna Sabalenka while Sabalenka was having issues with her serve.

That probably is not coincidence, as Gauff has had a difficult summer with her serving. Since winning the French Open, she has failed to replicate that success, including a very early exit at Wimbledon . During the Canadian Open earlier this month, she accumulated 42 doubl

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