Teenage tennis sensation João Fonseca frustrated his home fans at the Rio Open in a first-round loss two days after winning his first ATP title

Teenage tennis sensation João Fonseca frustrated his home fans at the Rio Open in a first-round loss two days after winning his first ATP title.

Teenager João Fonseca won his first ATP Tour title at the Argentina Open on Sunday, announcing himself as one of tennis’ brightest talents.

Rising tennis star João Fonseca has finished what he called “an unbelievable week” with a straight sets victory over Francisco Cerúndolo in the final of the Argentina Open to claim his first tour-leve

Brazilian 18-year-old Joao Fonseca defeated Argentine fifth seed Francisco Cerundolo 6-4, 7-6 (1) to win his first ATP Tour title at the IEB+ Argentina Open on Sunday in Buenos Aires.

Joao Fonseca replaces Thiago Seyboth Wild as the youngest Brazilian to win an ATP title and he is also the only active player and 18-year-old other than Carlos Alcaraz to win an ATP title since 2000.

Alexander Zverev has given Joao Fonseca a harsh reality check after the teenager lifted his first ATP Tour trophy. The 18-year-old clinched his maiden title at the Argentina Open on Sunday night and admitted he had dreams of being world No. 1 and winning Grand Slams.

Regardless of ranking and seedings, the story of this year’s Golden Swing is Joao Fonseca. He would have been the main narrative even if he was losing, but the Brazilian clinched his maiden ATP Tour title.