A rising star, NJ and NCAA singles champion Michael Zheng won his first-ever ATP main-draw match at the Australian Open.

Star attractions Carlos Alcaraz and Aryna Sabalenka progressed into the second round of the Australian Open on Sunday as disgruntled fans fumed over long queues and a surprise ticket sales halt on a blockbuster opening day of the tournament.

Play has begun at the Australian Open — the first Grand Slam of the season — with No. 7 seed Jasmine Paolini facing Aliaksandra Sasnovich at the Rod Laver Arena.

That group, which includes Sabalenka, Gauff, Świątek, Alcaraz and Sinner, are pushing for three main reforms: for prize money to be a greater proportion of tournament revenues for players at all levels, for greater consultation on tournament matters and for additional contributions to player welfare.

Tournament debutant Elsa Jacquemot upsets 20th seed Marta Kostyuk 6-7 (4) 7-6 (4) 7-6 (10-7) in the first Australian Open women's singles match in the Open Era to be decided via three tiebreaks. The Reuters Daily Briefing newsletter provides all the news you need to start your day. Sign up here.

Zeynep Sönmez has stopped a game to help an ailing ballkid during her first-round win over Ekaterina Alexandrova at the Australian Open.

The former world No. 1, 45, was in good spirits after coming within two games of upsetting Olga Danilovic on Sunday.

Learner Tien and Alex Michelsen have long careers and many dreams ahead of them. They want to grasp them sooner than later.