At just 18, João Fonseca is putting the tennis world on notice, as illustrated by his clinical straight-sets victory over ninth seed Andrey Rublev at the Australian Open.

Joao Fonseca (No. 113) will meet Andrey Rublev (No. 9) in the Round of 128 at the Australian Open on Saturday, January 11.Rublev’s last match was a win, 6-4, 7-5, over Alejandro Davidovich

Australian Open is showcasing a crop of young men's players who are better equipped for the changes in tennis than their elders.

Daniil Medvedev ripped 24 aces and converted six break points to outlast Kasidit Samrej in a 3-hour, 8-minute first-round victory Tuesday at the 2025 Australian Open. No. 9 Andrey Rublev was the latest upset victim.

Watch the match highlights between Andrey Rublev & Joao Fonseca in Round 1 of the 2025 Australian Open Men's Singles Tournament Tennis.

In a highly entertaining Australian Open first round match, 18-year-old Joao Fonseca defeated ninth ranked Andrey Rublev.

Fonseca was part of the 2024 lineup alongside Fils and Luca Van Assche of France; Michelsen, eventual finalist Learner Tien and Nishesh Basavareddy of the U.S.; Jakub Mensik of the Czech Republic and Shang Juncheng of China, who also goes by his Americanized name, Jerry Shang.

Russian ninth seed Andrey Rublev and Greek Maria Sakkari crashed out after first-round losses while Ons Jabeur, Daniil Medvedev, and Alex de Minaur marched ahead on Tuesday.

Players are represented by characters that look like something out of a Wii game — not exactly perfect portrayals of Coco Gauff or Novak Djokovic, perhaps, but they try to show the correct outfits.

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

In his first-ever Grand Slam match, Fonseca defeated World No. 9 Andrey Rublev in straight sets: 7-6 (1), 6-3, 7-6 (5). The match was evenly contested, but Fonseca was dominant with his power and agility.

Brazilian tennis prodigy Joao Fonseca, one of the breakout stars of the 2025 Australian Open, has revealed who inspired him to take up the sport.