The Australian Open first round continues with fifth seed Daniil Medvedev, home favourite Alex de Minaur and Italy's Jasmine Paolini among those in action, while Taylor Fritz battles Jenson Brooksby in one of three all-American clashes on Tuesday.

A few notable players suffered upset losses a day after the Melbourne event bid goodbye to 2023 finalist Stefanos Tsitsipas and other top-ranked players.

Three-times Australian Open finalist Daniil Medvedev allowed his frustrations to boil over in a Melbourne Park meltdown before advancing to the second round on Tuesday while Taylor Fritz made a strong start in his bid to end a 22-year Grand Slam drought for American men.

João Fonseca definitively introduced himself to the world as the latest teen sensation in men's tennis on Tuesday night, upsetting No. 9 seed Andrey Rublev 7-6 (1), 6-3, 7-6 (5) in the first round of the Australian Open.

Joao Fonseca, the Brazilian teenage sensation, made a massive statement in his Australian Open debut, securing one of the biggest upsets of the tournament so far by defeating No. 9 seed Andrey Rublev.