Ahead of a return to Flushing Meadows, his North American hard-court swing has already started with a withdrawal, as Sinner pulled out of the Canadian Open<\/a>, continuing to recover from his Wimbledon campaign. <\/p>\n Despite his triumphs on the tour, the world number one has rejigged his coaching team recently. <\/p>\n Sinner reappointed former fitness coach<\/a> Umberto Ferrara, a month after parting ways with athletic trainer Marco Panichi, and physiotherapist Ulises Badio. <\/p>\n Amid speculation of more changes in his team, Coco Gauff<\/a>\u2018s former coach, Brad Gilbert<\/a>, has weighed in on the situation. <\/p>\n Brad Gilbert calls out \u2018fake news\u2019 about Jannik Sinner\u2019s coaching situation<\/p>\n A report from Italian news outlet \u2018la Repubblica<\/a>\u2018 stated that Sinner<\/a>\u2018s head coach, Darren Cahill, would not be at the US Open with the 23-year-old and would, instead, take a short break. <\/p>\n Taking to X, formerly known as Twitter, Gilbert replied to an account that shared the story, stating: \u201cFor the record, this is completely fake news.\u201d<\/p>\n for the record this is completely fake news \ud83d\uddde\ufe0f<\/p>\n \u2014 Brad Gilbert (@bgtennisnation) July 25, 2025<\/a> <\/p>\n View Tweet<\/p>\n At the Australian Open earlier this year, Sinner confirmed that his player-coach relationship with Cahill would come to an end following the conclusion of the 2025 season. <\/p>\n The Wimbledon champion has come on leaps and bounds under the wing of the Australian, who had previously coached Simona Halep, Lleyton Hewitt, and Andre Agassi<\/a>. <\/p>\n Jannik Sinner\u2019s success with Darren Cahill in his coaching team<\/p>\n Sinner appointed Cahill in July 2022, when he was ranked 10th in the world at the age of 20. <\/p>\n The following year, he went on to reach the semi-finals at Wimbledon, which at the time was his best finish at a Grand Slam event. <\/p>\n Then, in 2024, everything started to click for Sinner and Cahill, as the young star clinched two major titles and emerged victorious at the ATP Finals. <\/p>\n So far this year, he has added another Australian Open title to his name, as well as a Wimbledon championship. <\/p>\n<\/p>\n ![\"Jannik](\"https:\/\/www.newsbeep.com\/us\/wp-content\/uploads\/2025\/07\/GettyImages-2226265772-1024x683.jpg\")
Photo by Tim Clayton\/Getty Images<\/p>\n