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.

By Shrivathsa Sridhar MELBOURNE (Reuters) -Endless queues outside Melbourne Park's 1573 Arena on a sunny Thursday afternoon gave casual fans the impression that a Grand Slam champion was in action, but a quick peek inside revealed the carnival atmosphere and explained the interest.

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.

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.

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.

Teenage rising star Joao Fonseca said nerves got the better of him after being bundled out of the Australian Open by Italian Lorenzo Sonego in a five-set thriller on Thursday.

Brazil have known about Fonseca’s talent known for some time, making his ATP Tour debut at his home tournament in Rio as a 16-year-old wildcard. Fonseca also got the chance to be a hitting partner for Alcaraz and Sinner ahead of the ATP Finals in Turin after winning the US Open junior title in 2023.

Coco Gauff declared herself a fan of Joao Fonseca and acknowledged that she has been following the Brazilian's career since she first encountered him at the 2023 US Open.

The Brazilian faced the young American Ethan Quinn in the title clash in Canberra. Joao notched a 6-4, 6-4 victory in an hour and 12 minutes en route to the title. Two young guns dominated behind the first serve, dropping seven of 68 points!