Sinner hails ‘incredible talent’ Fonseca after tightly-contested last-16 match
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Have we witnessed a new rivalry emerging at the top level of tennis?
Jannik Sinner, 24, scraped through his last-16 tie at the 2026 Indian Wells Open, beating 19-year-old Brazilian Joao Fonseca in straight sets to reach the quarter-final.
The pair’s first meeting was hotly anticipated, and it met expectations as the duo battled out a couple of blockbuster sets, with Sinner edging both by a tiebreak.
The Wimbledon champion ran out a 7-6(6) 7-6(4) winner to reach the last eight of the tournament, where he will face American Learner Tien for a spot in the semi-finals as he chases his maiden title.
But the four-time Grand Slam champion left the court in California mightily impressed with his teenage opponent Fonseca, and waxed lyrical about the player who could potentially become a future rival.
“Joao is an incredible player, incredible talent, very powerful from both sides,” Sinner said.
“He was serving very well. I felt like trying to be as aggressive as possible was the key. I dropped a bit of intensity at the end of the second set, but he played incredible tennis out there.”
Fonseca has already claimed two ATP Tour singles titles – the Argentina Open and Swiss Indoors – and has reached No. 24 in the world rankings.
“I think he is fearless. He likes to go for shots. He is very aggressive. Has a great mentality,” Sinner said.
“I don’t know him very well off the court, but he seems like a very humble kid, humble player. For sure, he’s gonna be very, very tough to beat. He’s already very tough to beat, but even in the future, even more so.
“It’s good. It’s good for the sport. It’s definitely good for the sport having him, having Learner [Tien] also, very consistent, incredible players. It’s good.”
Sinner has no doubt that Fonseca is “going to do some great things” in tennis.
“I cannot predict the future. I don’t know. I do believe he’s a very, very high-quality player,” he said.
“We all saw this. Now I have finally played against him, and I’m very sure he’s going to do some great things in the future.
“But, you know, there is a lot of work, as I put in, as we all put in. You know, things can change. He has everything that’s needed to be an incredible player, which he is already, but even more so. I wish him only the best.”

‘I am making my own history’ – Fonseca rejects Djokovic comparison
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Fonseca: The level is there
At the end of 2024, Fonseca became only the third 18-year-old to claim the Next Gen ATP Finals title after Carlos Alcaraz and Sinner, who have both gone on to become multiple Grand Slam champions.
The hype around Fonseca has only grown since then, having won two Tour-level tournaments last year, in Buenos Aires and Basel.
Now he is mixing it with the elite, and he feels that he stepped up to the plate when facing world No. 2 Sinner.
“I can play against them. I can do some great matches. But there are always the little things, the little important things that you need to work [on] every day,” Fonseca explained.

Joao Fonseca in action against Jannik Sinner at Indian Wells.
Image credit: Getty Images
“I mean, those little details are just super important, like when he played the important points, how he deals with it. So, of course, I still need a lot of experience, but I think the level is still there.
“Of course, I can play against them. [There are] many more things to improve, but I feel happy the way that I played, because I felt the level was pretty close today.”
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