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Coco Gauff Parts With Matt Daly Days Before US Open, Hires Gavin MacMillan

The move targets her season-long serving woes with a biomechanics focus led by Gavin MacMillan.

Aug 15, 2025; Cincinnati, OH, USA;  Coco Gauff (USA) returns a shot against Jasmine Paolini (ITA) during the Cincinnati Open at the Lindner Family Tennis Center. Mandatory Credit: Aaron Doster-Imagn Images/File Photo
Aug 15, 2025; Cincinnati, OH, USA;  Coco Gauff (USA) reacts after returning a shot against Jasmine Paolini (ITA) during the Cincinnati Open at the Lindner Family Tennis Center. Mandatory Credit: Aaron Doster-Imagn Images/ File Photo

Overview

  • Daly confirmed his recent departure to journalist Ben Rothenberg and deferred any formal announcement to Gauff, who has not publicly commented.
  • Gauff was seen practicing in New York with longtime mentor J.C. Faurel and MacMillan on court at the USTA Billie Jean King National Tennis Center.
  • Her serve has been a major concern, with a tour-high 320 double faults this season, including 42 across three matches at the Canadian Open.
  • Under Daly and Faurel, Gauff won the China Open, the WTA Finals, and the 2025 French Open before a dip that included a first-round exit at Wimbledon and just four wins since Paris.
  • The US Open main draw begins Sunday, and reports indicate Gauff, ranked No. 3, is slated for a Thursday night exhibition at Arthur Ashe Stadium.