Darren Cahill could remain alongside Jannik Sinner into the 2027 season, potentially extending a coaching partnership that was expected to end in December. According to La Gazzetta dello Sport, the Australian may reconsider his departure to help guide the Italian through his return from a knee injury, with the possibility of staying until Roland Garros now under discussion.
Sinner announced that he would miss the rest of the 2026 season to concentrate on recovering from inflammation of the iliotibial band. Cahill's contract was due to expire at the end of the year, but the next stage of Sinner's recovery could give the coach a reason to remain involved for longer.
It would be another change to the timeline for Cahill's departure. He initially planned to finish working with Sinner at the end of 2025 before agreeing to continue through 2026. Now, with their future still unresolved, the partnership could extend into the first half of next year.
The potential extension would also cover an important period in Sinner's career. Having won the Australian Open, Wimbledon and the US Open, he still needs the French Open to complete the career Grand Slam. His immediate priority is getting healthy, but the way he returns to competition could shape his preparations for another attempt at the title in Paris.
Cahill could postpone his departure again
Cahill had been expected to leave Sinner's team at the end of 2026, although he had previously left the door open to a change of plans. After Sinner won Wimbledon in July, the Australian reiterated that he intended to finish at the end of the year, while acknowledging that his plans had changed before.
“I said at the end of 2025 that it was over, but then I changed my mind. I'm here until the end of 2026, and after that, we'll see,” Cahill said.
The possibility of staying until Roland Garros would give the pair more time to manage Sinner's return and prepare for the most important part of his clay-court season. The Italian will need to rebuild his physical condition before returning to competition, with careful decisions about training loads, scheduling and when to resume match play.
Roland Garros would provide a natural point at which to reassess the arrangement. It is also the major Sinner most wants to add to his record as he looks to complete the career Grand Slam. He has already won three of the four Grand Slam tournaments, leaving Paris as the missing piece. Whether Cahill stays beyond the end of 2026 remains uncertain, but another extension would give the pair more time to pursue that target together.
Sinner's 2027 schedule could begin in Brisbane
Sinner's immediate priority is recovery. He is expected to spend around a month away from tennis while following conservative treatment and a programme focused on rebuilding muscular strength and knee stability. He has already undergone platelet-rich plasma treatment in Lyon, and surgery is not currently the recommended option. Any return to the court will need to be gradual to reduce the risk of another setback.
Brisbane is emerging as a possible first tournament of 2027, ahead of the Australian Open. Unlike in recent years, when Sinner arrived in Melbourne and used the Grand Slam as his first tournament of the season, his team may prefer an earlier trip to Australia to allow for a more gradual return to competition. His participation in Brisbane has not been confirmed and will depend on the state of his knee and his progress in training.
Sinner is also scheduled to appear at the One Point Slam on January 13 in Melbourne, alongside Carlos Alcaraz, Coco Gauff and Naomi Osaka. However, that exhibition event, where each match is decided by a single point, should not be confused with confirmation of his first official match of the season.
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If his recovery proceeds as planned, the ATP 500 in Doha could follow, before Sinner heads to the United States for Indian Wells and Miami, where he would defend the titles he won in 2026. His clay-court calendar could be adjusted, too. After a demanding schedule this year, he may consider skipping one tournament between Monte Carlo and Madrid, with Munich among the possible options.
For now, none of those plans is definitive. Sinner must first return to full fitness, while Cahill's future remains unresolved. If the Australian agrees to stay through Roland Garros, the partnership could continue into another season with a clear objective: helping Sinner return at his best and pursue the one Grand Slam title still missing from his career.
Cristhián AvilaTennis Journalist
Cristhián Ávila is a tennis journalist based in Santiago, Chile, and has been part of the TennisUpToDate team since early 2023. He covers the ATP and WTA Tours as well as all four Grand Slams, producing breaking news, match reports, analysis, and regular liveblogs from major tournaments.
His reporting combines statistical analysis with clear explanation, helping readers understand tactical developments, player form, and broader storylines across the tour. Working fluently in both Spanish and English, Cristhián collaborates with an international editorial team and contributes to comprehensive global coverage. As part of his work, he has conducted interviews and media interactions with leading figures in the sport, including Caroline Wozniacki and John McEnroe.
In his journalism, Cristhián places strong emphasis on careful sourcing, editorial accuracy, and updating articles promptly when new, verified information becomes available. His coverage is grounded in research, context, and direct engagement with professional tennis.
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