João Fonseca definitively introduced himself to the world as the latest teen sensation in men's tennis on Tuesday night, upsetting No. 9 seed Andrey Rublev 7-6 (1), 6-3, 7-6 (5) in the first round of the Australian Open.

During the match against Rublev, Joao showed all his power from baseline by shooting a forehand winner at 181 km/h. His forehand is the fastest in this edition of the tournament so far, ahead of Mpetshi Perricard (180 km/h) and Carlitos Alcaraz (178 km/h).