Italy claimed a third Davis Cup in as many years on Sunday after beating Spain 2-0 in front of delighted home fans in Bologna.
Sinner collapsed to the ground with a mixture of joy and relief after sealing his triumph at the season-ending tournament where he hasn't lost a match since being beaten in the 2023 final by Novak Djokovic.
Novak Djokovic will take on Carlos Alcaraz in the group stage of the upcoming ATP Finals while Jannik Sinner could face a derby with Lorenzo Musetti during his title defence at the season-ending tournament.
The Italian first claimed the number one ranking in June last year and held it for 65 weeks until he lost the US Open title-match to Alcaraz in September.
Jannik Sinner said Tuesday that he had come to terms with finishing the season behind rival Carlos Alcaraz in the rankings.
Jannik Sinner clinched his fourth title of the season on Sunday as the Italian rallied from a set down to beat Alexander Zverev in the final of the Vienna Open.
Jannik Sinner beat Alex de Minaur in straight sets at the Vienna Open on Saturday to reach his eighth final of the year.
Alexander Zverev on Saturday accused tennis authorities of favouring top-ranked rivals Carlos Alcaraz and Jannik Sinner in their choice of court surfaces, echoing criticisms made by Roger Federer.
Alcaraz is playing at the Japan Open in Tokyo this week, while Sinner will compete at the China Open in Beijing in his first appearance since the US Open.
Jannik Sinner beat Alex de Minaur in straight sets at the Vienna Open on Saturday to reach his eighth final of the year.
Alexander Zverev on Saturday accused tennis authorities of favouring top-ranked rivals Carlos Alcaraz and Jannik Sinner in their choice of court surfaces, echoing criticisms made by Roger Federer.
Alcaraz is playing at the Japan Open in Tokyo this week, while Sinner will compete at the China Open in Beijing in his first appearance since the US Open.
Carlos Alcaraz beat Jannik Sinner in four sets on Sunday to win the US Open and reassert his dominance of an era-defining rivalry in a final delayed by the visit of President Donald Trump.
Jannik Sinner and Carlos Alcaraz, the world's undisputed top two players, will square off in a third straight Grand Slam final on Sunday at the US Open with President Donald Trump in attendance.
Felix Auger-Aliassime left the U.S. Open with pride and perspective after a 6-1 3-6 6-3 6-4 semi-final defeat to defending champion Jannik Sinner on Friday, saying only time will tell if he can return to the sport’s summit after an inspired fortnight in New York.
Reigning champion Jannik Sinner expects another "special" occasion when he plays Carlos Alcaraz for the men's US Open title after the Italian reached his fifth successive Grand Slam final on Friday.
Defending champion Jannik Sinner battled past 25th seed Felix Auger-Aliassime 6-1, 3-6, 6-3, 6-4 in the US Open semifinals on Friday to set up a blockbuster title clash with Carlos Alcaraz and renew one of the sport's most compelling rivalries.
World number one Sinner swept aside Musetti 6-1, 6-4, 6-2 in the first all-Italian men's quarter-final in Grand Slam history.
Defending champion Sinner needed just 81 minutes to administer a brutal 6-1, 6-1, 6-1 drubbing to reach the last eight.
