Defending men’s champion Jannik Sinner, Carlos Alcaraz and Novak Djokovic all play, with Nick Kyrgios leading Australian hopes. They are joined by Iga Swiatek, Coco Gauff, Ons Jabeur, Danielle Collins and Naomi Osaka on a star-studded day’s play. Here’s what to watch on the three biggest show courts and around the grounds.

The first round of the Australian Open continues on Monday at Melbourne Park where top seed and defending champion Jannik Sinner seeks a third Grand Slam title while Novak Djokovic begins his quest for a record-extending 25th major.

Second seed Alexander Zverev barely needed to get out of third gear as the German cruised past Frenchman Lucas Pouille 6-4 6-4 6-4 and into Australian Open second round on Sunday.

Aryna Sabalenka took her first step Sunday toward a third consecutive Australian Open title as the top-seeded Belarusian breezed to a 6-3, 6-2 win over Sloane Stephens in a first-round match in Melbourne.

Australian Open is here, and the world's best tennis players are not the only ones competing in Melbourne. All of the major sportswear brands are trying to steal the global spotlight at the first Grand Slam of the year.