Gauff is currently the WTA World No. 3 with a record of 35-12 with one singles title (Roland Garros). She won the 2023 US Open, but failed to defend her title last year. Less than a month later, she fired coach Brad Gilbert.

Coco Gauff, the most popular American tennis player, hadn’t been able to book a practice court. So, she and her newly hired coach, biomechanics expert Gavin MacMillan, braved the mist for close to an hour as they worked on trying to fix her serve.

Coco Gauff is playing the long game when it comes to perfection. Firing her coach on the eve of the U.S. Open was a huge gamble for Gauff. But apparently not as risky as settling for the status quo, and her old broken serve.