Jannik Sinner hires Magnus Norman as new coach

Jannik Sinner will appoint former world No. 2 Magnus Norman as his new coach in December. The 25-year-old Italian is making the change as he prepares to return from a knee injury that forced him to miss the US Open and ATP Finals after winning Wimbledon in 2026.

Darren Cahill steps away after four-and-a-half years guiding Sinner to five Grand Slam titles alongside Simone Vagnozzi. Cahill, aged 61, had been the subject of speculation about his future but remained through 2026 despite Sinner's injury challenges. Vagnozzi's position on the coaching team is unchanged. Sinner pulled the plug on his 2026 season due to the knee injury sustained at Wimbledon, halting a campaign where he had already won six titles.

Cahill's departure and injury layoff

Darren Cahill departs after a major partnership that began in July 2022. He helped Sinner capture his first five major titles and finish the 2024 season as the ATP year-end No. 1. Cahill, a former coach of Lleyton Hewitt, Andre Agassi, and Simona Halep, was rumored to quit after 2025 but stayed on. Sinner's injury layoff began immediately after his Wimbledon defence, where he beat Alexander Zverev and then did not play again.

Sinner's recent success and upcoming schedule

Sinner's form before the injury was dominant. His 2024 season included six titles and a remarkable 44-3 record. He carried that momentum into 2026, winning five Masters 1000 events alongside his Wimbledon triumph. The knee injury halted his reign, and he will lose the world No. 1 ranking to Alexander Zverev in the coming weeks. Sinner has held the top spot for 95 weeks, including a streak of 65 consecutive weeks. He is expected to return to competitive action in early 2027. Sinner had committed to playing the Six Kings Slam exhibition in Saudi Arabia in late December, but that event has been postponed due to security concerns in the region.

Norman's credentials and past coaching achievements

Magnus Norman brings a proven track record of developing Grand Slam champions. The Swede, a former French Open finalist who beat Rafael Nadal at Roland Garros in 2000, is renowned for his work with Stan Wawrinka. Norman coached Wawrinka across three separate stints from 2013 to 2026, guiding him to three major titles including the 2014 Australian Open and the 2016 US Open. He also coached Robin Soderling to back-to-back French Open finals in 2009 and 2010. Norman is currently at the Swiss Indoors in Basel for Wawrinka's final tournament. He co-founded the Good to Great Tennis Academy. Neither Sinner nor Norman has publicly commented on the reported coaching transition.

Analyst Greg Rusedski pondered the impact of the injury, questioning "if Jannik Sinner can still win the Australian Open despite his injury issues." The coaching change sets the stage for Sinner's anticipated return to competition in early 2027.