Joao Fonseca definitively introduced himself to the world as the latest teen sensation in men’s tennis, upsetting No. 9 seed Andrey Rublev in the first round of the Australian Open.

The 18-year-old qualifier became the talk of the town after beating ninth seed Andrey Rublev in the first round. Read more at straitstimes.com.

Brazilian teen Joao Fonseca was one of the first surprises of the 2025 Australian Open, after he defeated ninth seed Andrey Rublev. Check out all you need to know about this young talent.

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.

Joao Fonseca delivered what he described as a 'rude' response to Novak Djokovic 's comments after becoming the breakthrough star of the Australian Open. Fonseca delivered a sensational display to stun Andrey Rublev in straight sets, beating the world No. 9 7-6 (1), 6-3, 7-6 (5) in the opening round on Tuesday.

While Fonseca appears on a trajectory to match it with the likes of Jannik Sinner and Carlos Alcaraz, it was Beatriz Haddad Maia who laid the groundwork for the Brazilian party as she put away Erika Andreeva in straight sets to move into the third round.

Fonseca has long looked like a star-in-waiting. Under pressure in his first Grand Slam set, he delivered beyond those lofty expectations

Joao Fonseca has been the talk of the tennis world and has now drawn high praise from 10-time Australian Open champion Novak Djokovic.

Novak Djokovic sees a bit of himself as a young player in rising teenager Joao Fonseca and particularly welcomed the prospect of a top talent coming out of Brazil.