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Tennis fans predict how many Grand Slam titles Jannik Sinner will win in 2026

Photo by Mark Avellino/Anadolu via Getty Images
Photo by Mark Avellino/Anadolu via Getty Images
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Jannik Sinner will be out for revenge at the French Open, the next Grand Slam in the tennis calendar.

Sinner fell in the Australian Open semifinals to Novak Djokovic, who went on to lose the final to ATP number one Carlos Alcaraz.

Moreover, the Spaniard beat the Italian in the 2025 final of the French Open, which is the only Grand Slam that Sinner has yet to win.

Sinner has spent more weeks at number one than Alcaraz, but the latter is closing in on his rival, while he just completed the career Grand Slam in Melbourne.

The Italian will now look to get back on track in the other Grand Slams of 2026, with fans predicting just how much success he will have in that regard on TalkingPoints.

How many Grand Slam titles will Jannik Sinner win in 2026?

Tennis fans think Jannik Sinner will win two Grand Slams in 2026

We asked our fans on TalkingPoints to predict how many Grand Slam titles Sinner will finish the year with, and 39.69% voted in favor of two.

That was followed by 28.62% of fans predicting Sinner to win three Grand Slam titles in 2026.

Four Grand Slams for Sinner was backed by 22.67%, although that is, of course, no longer a possibility following his lack of success at the Australian Open.

And 9.03% of fans think the Italian will win just one major title in 2026, which must arrive at the French Open, Wimbledon or the US Open.

Jannik Sinner 2026 Grand Slams TalkingPoints poll

What is Jannik Sinner’s Grand Slam finals history?

Sinner is now taking a break following his time at the Australian Open, much like many of his close rivals.

Alcaraz has withdrawn from Rotterdam, a decision also taken by Alexander Zverev, with Sinner not in action until the Qatar Open.

ResultYearTournamentSurfaceOpponentScore
Win2024Australian OpenHardDaniil Medvedev3–6, 3–6, 6–4, 6–4, 6–3
Win2024US OpenHardTaylor Fritz6–3, 6–4, 7–5
Win2025Australian OpenHardAlexander Zverev6–3, 7–6(7–4), 6–3
Loss2025French OpenClayCarlos Alcaraz6–4, 7–6(7–4), 4–6, 6–7(3–7), 6–7(2–10)
Win2025WimbledonGrassCarlos Alcaraz4–6, 6–4, 6–4, 6–4
Loss2025US OpenHardCarlos Alcaraz2–6, 6–3, 1–6, 4–6
Jannik Sinner Grand Slam finals

That will be more than enough time to help him recover physically and mentally following a challenging time in Melbourne.

He should also have added motivation upon his return, with Alcaraz’s 7-1 Grand Slam finals record massively outshining Sinner’s 4-2 record.