There was an unknown factor about Jannik Sinner's condition after the problems he had during the match against Holger Rune at the 2025 Australian Open. The world No.1 swept away any doubts by demolishing Alex de Minaur in the last quarterfinal and reached the semifinals of the Happy Slam, where he will try to defend the title he won last year.

The two best men's players in the world are reconfiguring the sport before their opponents' eyes. They don't know what to do about it

Jannik Sinner has labelled Carlos Alcaraz and Novak Djokovic’s rivalry as "the best in tennis" after the pair played each other at the Australian Open.

When Carlos Alcaraz is on court for a training session, perhaps working on his newly revamped service motion, he’s doing so to buttress a game already good enough to claim four Grand Slam titles

Novak Djokovic has come back to defeat Carlos Alcaraz 4-6, 6-4, 6-3, 6-4 to reach the Australian Open semifinals for the 12th time

FILE - Italy’s Jannik Sinner returns the ball to Netherlands’ Tallon Griekspoor during the Davis Cup final tennis match between Netherlands and Italy at the Martin Carpena Sports Hall in Malaga, southern Spain, Sunday, Nov. 24, 2024. (AP Photo/Manu Fernandez, File)

The Serbian tennis star Novak Djokovic’s quest for his record-extending 11th Australian Open continues as he has defeated Spaniard Carlos Alcaraz in the quarterfinal at Melbourne Park on Tuesday, January 21.