Joao Fonseca has made history at the Argentina Open by becoming the youngest Brazilian man to reach an ATP final in the Open Era. The 18-year-old from Rio de Janeiro defeated Laslo Djere of Serbia in the semifinals, winning 7-6 (3), 5-7, 6-1. This victory marks another milestone for Fonseca, who had already become the youngest Brazilian to reach an ATP semifinal earlier in the tournament.

Fonseca’s journey to the final has been nothing short of remarkable. He came back from double match point down to defeat Argentina’s Mariano Navone in the quarterfinals, winning 3-6, 6-4, 7-5. His performance in the semifinals was equally impressive, as he overcame Djere in a thrilling three-set match.

With this achievement, Fonseca has also become the first man born in 2006 or later to reach an ATP final. His rise through the ranks has been meteoric, and he is now projected to move into the Top 80 of the ATP rankings. If he wins the final, he will rise even further, potentially breaking into the Top 70.

Standing in Fonseca’s way is Francisco Cerundolo, who has been in excellent form throughout the tournament. Cerundolo, who stunned world No. 2 Alexander Zverev in the quarterfinals, will be looking to claim his fourth ATP title and his first on home soil.

Fonseca’s performance has captured the attention of tennis fans around the world, and his potential seems limitless. As he prepares for the final, he remains focused and determined to continue his impressive run. The tennis world eagerly awaits to see if he can secure his first ATP title and further solidify his place among the sport’s rising stars.

Fonseca in Buenos Aires, ranking, and results in 2025

Now ranked no.99, the Brazilian has a compiled 13-2 win-loss record in 2025. The Brazilian is playing in Buenos Aires where he managed to beat the world no.44 Tomas Martin Etcheverry 6-3 6-3, the world no.115 Federico Coria 2-6 6-4 6-2, the world no.47 Mariano Navone 3-6 6-4 7-5 and the world no.112 Laslo Djere 7-6(3) 5-7 6-1.

Joao Fonseca will take on the world no.28 Francisco Cerundolo in the final on Sunday at 4:00 pm on COURT GUILLERMO VILAS. They have never competed against each other up to now in top competitions.

Joao clinched 1 title in 2025 in the Canberra Challenger.