Overview

• Gauff confirmed a sudden split with Matt Daly and hired biomechanics specialist Gavin MacMillan, while retaining longtime mentor J.C. Faurel.
• She said a technical overhaul of her serve could not wait after roughly 320 double faults this season, including career-high totals in Canada and Cincinnati.
• Gauff noted she hopes early adjustments show by her opener next week, yet stressed the changes are aimed at the rest of the year and beyond.
• Aryna Sabalenka, who credits MacMillan with rapidly stabilizing her own serve in 2022, publicly wished Gauff well and endorsed his impact.
• Commentary has been divided over the timing, with some labeling it a gamble and others calling it necessary, as Gauff opens against Ajla Tomljanovic.