RIYADH, 27 October 2026 — World number one Jannik Sinner will make his comeback at the Six Kings Slam in Saudi Arabia in December, organisers announced on Monday 26 October 2026, reversing the Italian's decision earlier this month to shut down his 2026 season as he recovered from a knee injury that has sidelined him since his Wimbledon triumph in July.
Illustration: A tennis player walking onto a floodlit indoor arena court to a cheering crowd, capturing the atmosphere of a comeback match.
What Happened
Saudi entertainment chief Turki Alalshikh announced Sinner's return in a post on X on Monday, writing: "Star Jannik Sinner returns and participates in the world tennis championship Six Kings Slam." Sinner himself reposted the announcement on his social media story, confirming his participation, according to Reuters and TNT Sports, which both reported the news on 26 October.
The return is possible because the exhibition event was rescheduled. The Six Kings Slam, a lucrative non-ATP tournament in Riyadh, was originally due to take place from 21 to 24 October, but it was postponed to 27 to 30 December after an attack by Yemen's Iran-aligned Houthis on Riyadh's international airport killed 13 people, according to Reuters. That delay reopened a window Sinner had believed was closed.
Sinner, 25, has not played since defending his Wimbledon title in July, when he beat Alexander Zverev in the final to claim his fifth Grand Slam title and his second Wimbledon crown. He missed the US Open, where Zverev captured his second major of the year, and on 6 October he announced that he needed treatment on his knee and that his 2026 season was over. His message at the time ended on a hopeful note, saying he hoped to see fans "very, very soon on the court" — a return that has now arrived sooner than almost anyone expected.
The December event will be Sinner's first appearance since Wimbledon, and it comes only weeks before the Australian Open in January, where he will hope to begin his 2027 season. It is not an official ATP event, so the result will not count toward rankings.
Illustration: A gleaming golden tennis trophy on a court at centre stage with spotlights, evoking the high-stakes exhibition event.
Background
Sinner's 2026 season had been a story of triumph followed by frustration. His Wimbledon victory over Zverev, achieved after dropping the first set, confirmed his status as the dominant player of his generation, and he arrived at the summer as world number one. But the knee injury that followed ended his season in practice: he shut down his campaign in early October, ruling himself out of the European indoor hardcourt swing and the season-ending ATP Finals in Turin, an event he had won in each of the last two years.
The Six Kings Slam itself has become one of the most talked-about events in tennis despite its unofficial status. Sinner is its two-time defending champion, having beaten Carlos Alcaraz in both previous finals, earning himself $6 million at each event, according to Reuters. The exhibition format is simple: six players compete until one is left standing, with four playing in the first round and two receiving a bye to the semi-finals, followed by a final and a third-place match.
The 2026 field is a showcase of the sport's biggest names. Alongside Sinner and Alcaraz, the event will feature Novak Djokovic, Alexander Zverev, Taylor Fritz and Alex de Minaur. American Learner Tien, who had been named as Sinner's replacement when the Italian ruled himself out, will now drop out, according to reports of the announcement. The event is reported to pay players £1.2 million just for appearing, with an additional £3.5 million for the winner, making it one of the richest per-match paydays in tennis.
The postponement from October to December was part of a wider disruption to Saudi Arabian sport. January's Dakar Rally was moved out of Saudi Arabia due to security concerns, and golf's Asian Tour has postponed the Saudi International indefinitely, according to Reuters, underlining the security backdrop against which the rescheduled tennis event will now take place.
Why It Matters
Sinner's return matters first for what it signals about his knee. A player does not commit to a high-profile exhibition weeks before a Grand Slam unless he and his team believe his body can handle competitive tennis again. The Six Kings Slam, with its short format and guaranteed prize money, offers a relatively low-risk testing ground: intense enough to measure his readiness, but without ranking points at stake and without the grind of a full tournament draw. How he moves, serves and recovers in Riyadh will be read closely as a preview of his Australian Open prospects.
It matters second for the year-end rankings picture, which it does not change. Because the Six Kings Slam is not an ATP event, its result will not count toward rankings, and Zverev is guaranteed to finish 2026 as the ATP's year-end world number one, according to Reuters. Sinner's comeback is therefore a sporting and commercial event, not a ranking battle — a distinction that frees him to test himself without the pressure of defending points.
It matters third for tennis's economics and its calendar. Exhibition events with huge appearance fees have become a fixture of the sport's off-season, and Sinner's participation gives the rescheduled Riyadh event its headline attraction back. For fans, the December dates offer a rare year-end meeting of the sport's biggest stars, including a possible third Sinner–Alcaraz final in the event's short history.
There is also a human dimension. Sinner's October announcement that his season was over was received as a sad but sensible decision by a 25-year-old protecting a long career. His own words at the time — that he needed to think about his long-term career and would do everything possible to get back to 100 per cent — framed the shutdown as patience, not surrender. The December return shows that patience paying off sooner than expected, and it gives his season an unexpected final chapter.
Illustration: A tennis player doing gentle knee rehabilitation exercises with a physiotherapist on a training court, representing careful comeback preparation.
What Happens Next
Between now and 27 December, the key question is Sinner's physical preparation. Reports of his comeback note that he has resumed physical work as he gauges match readiness, and any update from his camp on training or practice matches will be closely watched. If his knee responds well, Riyadh will be a genuine competitive return; if it does not, the exhibition format at least allows him to withdraw without ranking consequences.
The event itself runs from 27 to 30 December in Riyadh, with the six-man field competing for the crown and the winner's prize. A Sinner–Alcaraz meeting would be the headline match of the week, given their two previous finals, but Djokovic, Zverev, Fritz and De Minaur all have the quality to reach the final themselves.
Beyond Riyadh, all eyes turn to January's Australian Open. Sinner's performance in December will shape expectations for Melbourne: a strong showing would mark him as a favourite, while a cautious or limited appearance would suggest a longer build-up. Either way, the player who left the tour in July as Wimbledon champion is back on the calendar, and the sport's 2027 season now has its first major storyline.
For tennis fans, the message of the last three weeks is simple. A season that seemed over in October has one more act, and it begins under the lights in Riyadh on 27 December.
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FAQ
When is Jannik Sinner returning?
Organisers announced on Monday 26 October 2026 that Sinner will play the Six Kings Slam in Riyadh from 27 to 30 December 2026, his first appearance since winning Wimbledon in July 2026.
Why did Sinner think his season was over?
On 6 October 2026, Sinner announced he would not compete again in 2026 as he continued his recovery from a knee injury that has sidelined him since Wimbledon, ruling him out of the European indoor swing and the ATP Finals in Turin.
Why was the Six Kings Slam moved to December?
The exhibition was originally scheduled for 21 to 24 October but was postponed to 27 to 30 December after an attack on Riyadh's international airport, according to Reuters. The delay reopened the possibility of Sinner playing before the end of the year.
Who else is playing the Six Kings Slam?
Alongside Sinner, the field features Carlos Alcaraz, Novak Djokovic, Alexander Zverev, Taylor Fritz and Alex de Minaur. Learner Tien, named as Sinner's replacement, will drop out following Sinner's return.
Will the result affect the ATP rankings?
No. The Six Kings Slam is a non-ATP exhibition, so its result will not count toward rankings. Alexander Zverev is guaranteed to finish 2026 as the ATP's year-end world number one.
Sources
- Reuters — "Sinner set to return at postponed Six Kings Slam," 26 October 2026 (reporting by Trevor Stynes, editing by Ed Osmond).
- TNT Sports — "Sinner to return from injury with appearance at Six Kings Slam," 26 October 2026.
- EssentiallySports via Yardbarker — "Jannik Sinner Backtracks on Season-Ending Announcement To Play $13.5 Million Event," 27 October 2026.
- Tennis365 — "Jannik Sinner reacts to Six Kings Slam news as ATP star set to miss out on £1.2m payday," 26 October 2026.
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