Jannik Sinner’s coach Darren Cahill feels there’s not much more he can teach the Italian. Cahill, a world-renowned coach, has played an instrumental role in helping Sinner win four Slams in his young career. 

Sinner, along with Carlos Alcaraz, is currently one of the best players on the tour and Cahill deserves a lot of credit for his success. The Australian coach said he has passed on almost all of his knowledge during the ongoing coaching stint with Sinner.

Cahill said on Tennis Insider club podcast, “The window for a coach in tennis is maybe three, four years, and if it goes any longer the map, it comes more of a coach/manager, protector, you know, just making the player feel good role, because there’s about a three or four year window where you can impart everything you know.

“And that’s the thing about coaching also, is that the better style of coaching is to coach a player to teach them. So they could problem solve for themselves. And so the player gets to a point after three years and go, you’re about to say something, I know what you’re about to say. And you do it already. And then you go on the court.”

The 60-year-old coach suggested that he and Sinner have already reached that phase after working for nearly four years together.

“So there’s not as much needed for you to be around that particular coach and after three or four years, it’s time for somebody else, a different voice, different inspiration, different message.

“The other way of coaching is to have that player rely on the coach. Let me tell you what to do. Not explain to you what to do. I’m going to tell you what to do: take the forehand cross, or come in or whatever it may be, but you’re not really explaining it, so that ends up with the player relying on the coach too much for the tactical side of things.

“And the coach is cementing their position with that player for a long time, but not really helping the player become better.”

Sinner will play his arch-rival Carlos Alcaraz in an exhibition match in South Africa on Saturday.