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.

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.

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.