Jannik Sinner launches his bid to win a third Australian Open in a row on Tuesday as Madison Keys also kickstarts her title defence in Melbourne. Two-time former champion Naomi Osaka is also in action on day three of the first Grand Slam of the year, as is highly promising Brazilian teenager Joao Fonseca.

The world No. 2 made and two-time defending Australian Open champion shockingly lost a point to an Aussie amateur.

Defending champion Jannik Sinner and No. 1-ranked Carlos Alcaraz lead the men's field at the 2026 Australian Open.

Jannik Sinner's girlfriend, Danish model Laila Hasanovic, enjoyed some R&R in France before he looks to win a three-peat in the Australian Open, which gets under way in Melbourne this week.

Jannik Sinner returns to the Australian Open eyeing a three-peat for the first time since Novak Djokovic completed the feat with consecutive titles from 2019 to 2022.

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A little-known local amateur player beat Jannik Sinner and went on to make himself a millionaire in Australian dollars after winning the 1 Point Slam on Wednesday at the Australian Open’s pre-tournament event.

An amateur tennis player beating a four-time Grand Slam champion. Men competing against women — on a normal court. Professional players taking on TV hosts, comedians and a former jockey. A single point deciding the winner of $1 million AUD ($668,300 USD), in front of a packed stadium and a captive online audience.