Sinner splits with Darren Cahill, ropes in Stan Wawrinka's coach Magnus Norman

Jannik Sinner will part ways with long-time coach Darren Cahill after the 2026 season, bringing in former Stan Wawrinka coach Magnus Norman as he looks to build on his Grand Slam success.

Jannik Sinner will begin a new chapter in his coaching career after confirming that Darren Cahill will leave his team at the end of the 2026 season, bringing an end to a hugely successful partnership that helped the Italian establish himself among the leading players in men's tennis.

Sinner has appointed former world No. 2 Magnus Norman to join his coaching team from December. The Swede will work alongside Simone Vagnozzi, who has been part of the Italian's set-up since 2022.

Cahill joined Sinner's team in June 2022 and had initially planned to step away at the end of the 2025 season. However, he agreed to stay on for another year, extending a partnership that yielded five Grand Slam titles and helped Sinner reach the world No. 1 ranking.

In a message shared on social media on Friday, Sinner paid tribute to the Australian, describing him as an important influence on and off the court.

"Darren has been an incredibly important part of my journey. I want to thank Darren for his belief in me, his honesty and his dedication. He has helped me grow both as a player and as a person, and his guidance will stay with me throughout my career," Sinner said.

The Italian added that while their coaching partnership was coming to an end, their friendship would continue. He also thanked Cahill for the five seasons they had spent together, saying he would not forget a single day of their time working together.

Cahill, who has coached four players to the top of the world rankings during his career, also acknowledged the relationship. He described working with Sinner as a special honour and praised the Italian's humility, dedication and trust in his team.

The coaching change comes at the end of a season in which Sinner has been forced to contend with a knee injury. He has not played since beating Alexander Zverev in the Wimbledon final in July and has already announced that he will not compete in the remaining ATP tournaments this year. Alexander Zverev is set to finish 2026 as the year-end world No. 1.

WHO IS MAGNUS NORMAN

Norman brings considerable experience as both a former player and a coach. The 50-year-old Swede reached a career-high ranking of world No. 2 in 2000 and was a French Open finalist that year, losing to Gustavo Kuerten.

His biggest achievements, however, have come from the coaching box, particularly during his association with Stan Wawrinka. Norman began working with the Swiss in 2013 and helped him win three Grand Slam titles in as many consecutive years.

Wawrinka claimed his maiden major at the 2014 Australian Open, defeating Rafael Nadal in the final. He followed that up with victories over Novak Djokovic in the 2015 French Open final and the 2016 US Open final. Under Norman, Wawrinka also climbed to a career-high world No. 3.

Norman also coached compatriot Robin Soderling, guiding him to consecutive French Open finals in 2009 and 2010. Soderling famously became the first player to beat Rafael Nadal at Roland Garros in 2009. Norman has also worked with former Australian Open champion Thomas Johansson.

Away from the tour, Norman co-founded the Good to Great Tennis Academy in Sweden with former players Mikael Tillstrom and Nicklas Kulti.

For Sinner, the appointment brings in a coach with a proven record of helping elite players make the jump from the top of the rankings to Grand Slam success. Norman's task will be to build on the foundations laid by Cahill and Vagnozzi as the Italian looks to remain at the summit of men's tennis.