Double defending champion Jannik Sinner advanced to the second round of the Australian Open on Tuesday in just over an hour of tennis after his French opponent Hugo Gaston retired upon losing the first two sets 6-2 6-1.

Novak Djokovic embarked on his latest quest to win a record 25th Grand Slam by easing to an ominous straight-sets victory Monday at the Australian Open.

Novak Djokovic said Saturday he likes his chances at the Australian Open despite "missing a bit of juice" in the legs, declaring he can still beat anyone on his day.

The 24-year-old Italian arrived at Melbourne Park last year under intense pressure, not knowing his fate after a drugs scandal.

Carlos Alcaraz beat great rival Jannik Sinner in a light-hearted sell-out exhibition match in South Korea on Saturday ahead of the Australian Open.

World number three Alexander Zverev admitted on Saturday that he has "a lot of catching up to do" to challenge Carlos Alcaraz and Jannik Sinner.

The world number seven is yet to beat either player and admits he has to find new weapons to challenge the Spaniard and Italian who have shared the last eight Grand Slam titles.

With six Grand Slam titles under his belt to Sinner's four, Alcaraz will look to eclipse Nadal and become the youngest man to complete the set of all majors when he heads Down Under in the New Year.

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.

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.