New Delhi, Oct. 26 -- World No. 2 player Jannik Sinner has had an amazing 2025 season, winning the Australian and Wimbledon Opens, with his recent victory over Alexander Zverev in the Vienna Open final. Off the court, Sinner is thinking about his longtime coach and mentor Darren Cahill's upcoming retirement.

At 60, Cahill has announced that 2025 will be his final year as a full-time coach on the ATP Tour. He has guided tennis legends like Andre Agassi, Simona Halep, and Lleyton Hewitt, but his work with Sinner has been particularly personal and impactful. Sinner said, "It's a topic we haven't discussed in detail yet. Darren has certainly given me so much, and I'm grateful to him for it. We'll see together what to do-he was not just a coa...