Jannik Sinner achieved glory at Wimbledon for the first time last week, and with it came the opportunity to decide whether to extend his partnership with coach Darren Cahill beyond this season. The Italian earned that privilege by winning a friendly wager with the Aussie, placed before the final on Sunday.
With the Split Deadline Nearing, Jannik Sinner Holds the Call on Whether To Continue With Darren Cahill
Sinner’s partnership with Simone Vagnozzi and Cahill, which began in 2022, has been central to his rise. In that span, he won four Majors, reached the top of the ATP rankings, won his first ATP Finals title in Turin last year, and ended the previous season with an astounding 73-6 win-loss record.
However, it came as a major surprise to the tennis world when Sinner revealed during the Australian Open in January that he and Cahill would be splitting as the season ends. What followed was a season of ups and downs, including a three-month doping suspension that kept Sinner off the court, before he bounced back to reach the French Open final and claim the Wimbledon title.
Yet, there remains uncertainty surrounding Cahill’s departure, as Sinner hinted during his Wimbledon press conference that the final decision lies with him.
“It depends if I want to tell the truth or not! We made a bet before the final: I told him that if I won, I could choose whether he could stay or not at the end of the year. Now the choice is mine! I’ve always looked for an honest person who gives me a lot not only on the tennis court but also in life outside, both in success and in disappointments,” he said while responding to a reporter in Italian.
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— Janniksin_Updates (@JannikSinner_Up) July 13, 2025
Cahill has built an impressive résumé as a coach with successful stints with greats like Andy Murray, Andre Agassi, Lleyton Hewitt, and Simona Halep.
Sinner Gave Further Clarity on His Partnership With Cahill
Perhaps Sinner himself isn’t eager to end his partnership with Cahill. The Italian added that during the Australian Open, he had expressed to the 59-year-old his desire for him to stay on. However, Sinner acknowledged that if Cahill were to continue working alongside co-coach Vagnozzi, his role might be more limited, with reduced travel on tour.
“He’s fantastic at that. If I choose to stay with him, he probably won’t travel as much anymore, that’s normal. I’ve always told him that in Australia I’d like to have him, because things are going well. Then the season is still long, there are still many tournaments, and I’ll see him many more times… But I won the bet, now we’ll see!” He added.
Sinner shared his quotes from the press conference in English in his Instagram story:

As Sinner continues his season, attention will also remain on how his partnership with Cahill unfolds. Notably, Cahill was in Sinner’s box throughout his Wimbledon campaign, and also rooted for him as he restricted Carlos Alcaraz from achieving a rare three-peat.
