Jannik Sinner to part with coach Darren Cahill after 2026 season

Italian tennis star Jannik Sinner announced on Friday that he will split with his coach Darren Cahill after the 2026 season, according to UPI, ATP Tour, and Tennis Majors. Sinner has hired Magnus Norman to join his coaching team, the outlets reported. UPI reported that Sinner shared the decision in a video posted to his social media accounts. [1][2][4][5]

Cahill and Sinner began working together in 2022, according to UPI. During their partnership, Cahill helped Sinner attain the top world ranking and win five Grand Slam singles titles, UPI reported. Cahill previously coached Andre Agassi and Simona Halep before joining Sinner's team, according to UPI. [1][5]

Sinner is an Italian professional tennis player who has won 30 ATP Tour-level singles titles, including five majors and two ATP Finals titles. He has also led Italy to back-to-back Davis Cup victories in 2023 and 2024. Norman is a Swedish former professional tennis player who reached a career-high ranking of world number two in June 2000 and won twelve ATP Tour singles titles. Cahill, an Australian former player who turned professional in 1984, reached a career-high singles ranking of number 22 in 1989 and won two ATP singles titles. [7][8][9]

TennisTemple reported that former American player Christopher Eubanks described the new partnership between Sinner and Norman as a perfect match. Tennis365 noted that the change comes amid a series of coaching shake-ups in professional tennis, following recent updates involving other top players. [3][6]