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.

Joao Fonseca has become the talk of the town in Melbourne after causing a big upset at the Australian Open. The 18-year-old qualifier stunned No. 9 seed Andrey Rublev in straight sets as he made his Grand Slam main draw debut on Tuesday.

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.

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

Grand Slam giant killings do not come much more sizeable than Joao Fonseca's stunning straight sets victory over Andrey Rublev at the Australian Open.

Fonseca will take on Lorenzo Sonego in round two, and Alcaraz - himself only 21 - sees the sky as the limit for the teenager

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.

Fonseca, Fonseca, Fonseca. You’ve gotta watch Fonseca. It’s all I kept hearing. Fonseca’s a freak. Fonseca’ll be in the next Big Three. I clocked off work and grabbed a cold one late on Tuesday night to watch Joao Fonseca obliterate Andrey Rublev.

Carlos Alcaraz was once a teenager winning grand slam titles and the Spanish superstar believes Joao Fonseca could follow in his footsteps.

Qualifier Joao Fonseca stunned ninth seed Andey Rublev on his grand slam debut at the Australian Open to extend his winning streak to 14 matches. The 18-year-old Brazilian, who is quickly becoming a superstar in his home country,

Teenage sensation Joao Fonseca is set to reach a new rankings milestone - and he could be about to become a tennis millionaire.