Jannik Sinner, the champion. A phrase that keeps repeating itself throughout 2026. And with no player able to truly challenge him, the question looms over the sport: who can stop the world No. 1?
The Italian lifted the Madrid Open trophy, his fourth consecutive Masters 1000 title this year. Carlos Alcaraz is injured and has no clear return date. That leaves Alexander Zverev, the world No. 3, as his strongest potential rival — the player most likely to trouble him. But even the German is the first to acknowledge the reality.
“There is a big gap between Sinner and everyone else right now. He hasn’t lost a Masters 1000 match since Shanghai (2025) — it’s been almost nine months. You have to admit there’s a gap,” said the world No. 3 after losing 6-1, 6-2 in Madrid. He lasted just 58 minutes against the four-time Grand Slam champion, who also became the first player in history to win five Masters 1000 titles in a row.
That gap looks almost impossible to close in 2026 for two reasons. Carlos Alcaraz, his main rival, will miss both Rome and Roland Garros due to a right wrist injury that has not been fully disclosed. There is no clear timeline: while a return on grass is possible, it could also come during the North American hard-court swing — historically the stretch where his generational rival has been strongest.
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The second reason is that the rest of the field is simply not as strong. Zverev is a clear example: he has not beaten Sinner since September 2023. Since that US Open, they have faced each other nine times, and the Tokyo 2021 Olympic champion has managed to take just two sets.
Novak Djokovic defeated the Wimbledon champion in the semi-finals of the 2026 Australian Open, but his physical issues remain the biggest obstacle to him being a consistent threat throughout the season. The Serbian has played only two tournaments this year, and prior to Melbourne, he had lost his previous four matches against Sinner.
The search for potential challengers looks bleak beyond the Top 4. None of the players currently ranked between No. 5 and No. 10 has managed to beat him since the start of 2025.
“He’s very consistent. He doesn’t have dips, he doesn’t go through phases where his level drops. That’s why he’s world No. 1. For me, that’s even more impressive — that he can maintain that level all the time,” Zverev admitted about the tour’s dominant force.
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All of this suggests that 2026 could be a historic year. If he wins in Rome, he will become only the second player in history to claim all nine Masters 1000 titles; if he wins Roland Garros, he will complete the career Grand Slam at just 24.
Alcaraz — who beat him in the finals of Roland Garros, Cincinnati and the US Open last year — is opting for caution. His indefinite absence is helping Sinner build a commanding lead in the rankings. At this pace, the Italian will arrive at the final stretch of the season with a significant advantage, where he will aim to reclaim the US Open title before defending crowns in Beijing, Vienna, Paris and the ATP Finals.
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