Live: Defending champion up first at Australian Open

A lot of topics burned through on today’s ABC Tennis Podcast with Lauren Bordin, John Alexander and John Millman.

• What Tristan Schoolkate can take from his loss to Jannik Sinner
• Daniil Medvedev’s upset loss to Learner Tien, one of a host of promising juniors
• Alex de Minaur’s win over Tristan Boyer
• Danielle Collins and Australian crowds’ behaviour
• Thanasi Kokkinakis’s injuries
• No frills Aleksandar Vukic’s run to the third round

Hello and welcome to ABC Sport’s latest Australian Open live blog, with third-round singles matches kicking off today.

The round of 32 is a real turning point in the majors, as early upsets reveal themselves to be flashes in the pan or proper runs. It’s also when the dominant seeds can establish their form and launch into the second week of the tournament.

We’ve got a host of former champions in action today — including Novak Djokovic, Aryna Sabalenka and Naomi Osaka — while Aleksandar Vukic flies the Aussie flag in the singles and a host of locals hit the doubles court.

Let’s get into it!