From comparisons to Jannik Sinner to his sudden withdrawal: the young talent leaves everyone speechless
It was supposed to be the year of his definitive breakthrough, but instead it turned into a long obstacle course. Joao Fonseca, the Brazilian talent who had been nicknamed “Sinnerzinho” back home due to certain similarities—in terms of physical build and playing style—to Jannik Sinner, announced a hiatus that surprised fans and industry insiders alike. The 2006-born player will take a break, which will first result in him withdrawing from the Asian tournaments: Fonseca will therefore miss the ATP 500 in Tokyo and the Masters 1000 in Shanghai, but he has not set a return date.
Expectations for him were enormous. After his victory at the 2024 Next Gen Finals and his rise to No. 24 in the world rankings, many observers expected 2026 to be the season of his definitive breakthrough. The results, however, have not materialized, and the only titles he has won so far on the main tour in his young career remain those earned in 2025 in Buenos Aires, at the ATP 250 in Argentina, and in Basel, at the ATP 500 in Switzerland.
The season was heavily impacted by injuries. At the start of the year, Fonseca had to deal with back problems, and his Australian Open run ended in the first round. Then, over the summer, he also suffered from abdominal pain that forced him to withdraw from the U.S. Open. There were still some notable highlights, such as his sensational victory over Novak Djokovic at Roland Garros, but his run in Paris ended shortly after, in the quarterfinals, against Jakub Mensik.
After helping Brazil defeat Switzerland in the Davis Cup over the weekend (though he struggled a bit too much to beat world No. 266 Dominic Stricker), Fonseca realized it was time to take a break. “2026 has been a very difficult year for me,” Fonseca wrote on Instagram. “In addition to everything the profession demands, there have been many injuries that ultimately forced me to miss important tournaments and prevented me from playing the way I would have liked.”
“I know that an athlete’s life also includes moments like these, but that doesn’t make the situation any less frustrating,” he added. “I made a huge effort to return to defend Brazil’s colors in the Davis Cup, but I need more time. I’ve spoken at length with my team, and we’ve come to the conclusion that the best choice right now is to heed these warning signs, give my body and mind some time to recover, and not participate in the tournaments in Asia. Thank you so much for everyone’s support and affection. We’ll see each other again soon.”
A decision that has left everyone stunned, especially considering the expectations surrounding the player whom many had identified as one of the potential stars of the new generation. For now, however, Fonseca’s priority isn’t the rankings, but regaining full physical and mental condition after what he himself considers one of the most difficult seasons of his young career.
