Why Indian Wells could play a deciding role in Jannik Sinner’s future coaching set-up

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Simone Vagnozzi won’t be joining Jannik Sinner at Indian Wells.

Instead, Sinner will be coached by Darren Cahill at the first Masters 1000 event of the season.

The Australian coach planned to leave Sinner’s team in 2025, but changed his mind.

He continues to share the role with Vagnozzi, as the pair focus on different areas of Sinner’s game.

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While Vagnozzi targets the technical side of things, Cahill places more importance on the world number two’s mental game.

At Indian Wells, Sinner is going to find out which is more important…

Jannik Sinner will know if Darren Cahill is more important than Simone Vagnozzi after Indian Wells

Sinner will travel to Indian Wells as one of the big favorites to lift the trophy.

Alongside his great rival, Carlos Alcaraz, of course.

Having struggled so far this year, by his lofty standards, winning Indian Wells would mean the world to Sinner.

Jannik Sinner’s results in 2026

But it would also tell him a lot about his team’s future.

If Sinner were to win the title, then perhaps he would be even less willing to let Cahill depart.

It wouldn’t overshadow all the brilliant work Vagnozzi has done, but it would act as a reminder of Cahill’s importance.

On the other hand, if Sinner were to suffer an early exit, he and the ever-critical media may attribute his defeat to Vagnozzi’s absence.

Sinner does come across as a rational thinker, though, so it’s unlikely he would decide on the future of his coaching team solely based on his performance at Indian Wells, but it may play a role.

There’s an argument to suggest that a similar situation occurred in 2025 with Carlos Alcaraz, which may have led to the departure of Juan Carlos Ferrero…

What happened to Carlos Alcaraz’s coaching team last year?

The tennis world was rocked by the news of Alcaraz and Ferrero’s split last December.

It’s unclear exactly why they parted ways, but there may be one unspoken reason why Alcaraz was willing to go on without Ferrero.

On several occasions in 2025, Ferrero chose not to travel with Alcaraz, as Samuel Lopez stepped into the head coach role.

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Incidentally, those were the tournaments Alcaraz won (Rotterdam Open, Monte-Carlo Masters).

In doing so, the 22-year-old proved he could win without Ferrero.

Perhaps that gave him the confidence to let Ferrero go over the off-season.

And it proved to be a good decision too.

Some questioned whether Alcaraz would struggle after Ferrero left the team, but led by Lopez, the Spaniard has been better than ever.

He completed his Career Grand Slam by winning the Australian Open in January, before taking home the Qatar Open title earlier this month.

Since Lopez took charge, Alcaraz hasn’t lost a single match.

Carlos Alcaraz’s winning streak w/Samuel Lopez

• 1. Australian Open 1R vs Adam Walton
• 2. Australian Open 2R vs Yannick Hanfmann
• 3. Australian Open 3R vs Corentin Moutet
• 4. Australian Open 4R vs Tommy Paul
• 5. Australian Open QF vs Alex de Minaur
• 6. Australian Open SF vs Alexander Zverev
• 7. Australian Open F vs Novak Djokovic
• 8. Qatar Open 1R vs Arthur Rinderknech
• 9. Qatar Open 2R vs Valentin Royer
• 10. Qatar Open QF vs Karen Khachanov
• 11. Qatar Open SF vs Andrey Rublev
• 12. Qatar Open F vs Arthur Fils

But just because Alcaraz has improved since Lopez became his sole coach, that doesn’t mean the same would happen for Sinner with Cahill or Vagnozzi.

Regardless, you certainly won’t want to miss any of the action at Indian Wells.

The tournament begins on Wednesday, March 4.