A five-year run closes with five majors and 95 weeks on top
Jannik Sinner has confirmed that his coaching arrangement with Darren Cahill has come to an end after five years. During that stretch the Italian claimed five Grand Slam titles and occupied the world No 1 ranking for 95 weeks, with the veteran Australian working in tandem with Italian coach Simone Vagnozzi. The pair had been together since 2022, when both Cahill and Vagnozzi began collaborating with Sinner.[S1][S3][S4]
Cahill, 61, had intended to step away after the previous season, but a wager between coach and player changed the timetable. Had Sinner captured the Wimbledon title, the decision on Cahill's future would rest with the player, and the Australian remained in the role for one more year. Sinner went on to win his second Wimbledon crown in July.[S1]
Norman brings a proven record to an existing structure
Magnus Norman is set to take Cahill's place in 2027. The 50-year-old Swede, a former world No 2, previously guided compatriot Robin Soderling into the top five and to two French Open finals, and later helped Swiss player Stan Wawrinka secure three Grand Slam titles. Norman will work alongside Vagnozzi rather than replace him.[S1][S4][S5][S7][S8]
Sinner has not played since claiming his second Wimbledon title in July, with a knee injury keeping him off court. Alexander Zverev is assured of ending 2026 as the year-end world No 1, a position sealed in part by Sinner's decision to sit out every remaining ATP tournament on this year's calendar.[S1][S6]
Sinner credits Cahill for growth on and off the court
Reflecting on the split, Sinner described Cahill as a hugely significant figure in his career and expressed gratitude for the Australian's confidence in him, his candour and his commitment. The Italian said the coach had helped him develop as both a competitor and a person, and that the lessons would remain with him for the rest of his playing days.[S1]
