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.

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

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.

The Australian Open, one of tennis’ grandest stages, often serves as the launch pad for future stars. Though Joao Fonseca, a promising young talent, bowed out early in this year’s tournament, his performance and potential have sparked significant interest among fans and analysts alike.

Backed by a raucous Brazilian contingent on Court 1573, Fonseca took the hour-long opener in the decider, eventually clinching set point at the fourth time of asking

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's impressive Grand Slam debut at the Australian Open showcased the young Brazilian's potential despite his second-round defeat to Lorenzo Sonego. Praised by top players like Carlos Alcaraz,

Teenage rising star Joao Fonseca was bundled out in the Australian Open second round on Thursday by wily Italian Lorenzo Sonego in a five-set thriller.

Italy's Lorenzo Sonego beat Brazilian Joao Fonseca, widely considered the rising star of international tennis, 6-7 6-3 6-1 3-6 6-3 on Thursday to reach the third round of the Australian Open. Lorenzo Musetti is also in the third round after beating Canadian Denis Shapovalov 7-6,