Coco Gauff faced a disappointing exit in the fourth round of the US Open, losing to Emma Navarro, raising concerns about her coaching and technique. Rennae Stubbs, a former coach of Serena Williams, critiqued Gauff's performance and confidence during an ESPN panel, despite the presence of Gauff's coach, Brad Gilbert. Gauff struggled with her serve, committing 19 double faults and a total of 60 unforced errors, prompting calls from fans to consider changing her coaching team. Serena Williams, also in attendance, suggested Gauff could improve her serve but defended her forehand, despite mixed reactions from fans. Gauff acknowledged her struggles and expressed a desire to consult with other coaches to address her technique. After the match, Gauff maintained a positive outlook, reflecting that many players would aspire to her achievements despite the recent results.