(FILES) Italy's Jannik Sinner hits a shot as his coach Darren Cahill (R) watches during a practice session in Melbourne on January 16, 2026, ahead of the Australian Open tennis tournament starting on January 18. Jannik Sinner confirmed on November 6, 2026 that Magnus Norman will replace his long-time coach Darren Cahill, who helped shape the Italian into the world's top tennis player. In a statement, world number two Sinner said that he would conclude his partnership with Cahill, which began in June 2022, "at the end of the 2026 season". (Photo by DAVID GRAY / AFP via Getty Images) / -- IMAGE RESTRICTED TO EDITORIAL USE - STRICTLY NO COMMERCIAL USE --