The rise of teenage tennis star Joao Fonseca -- who pulled off a stunning win over Serbian great Novak Djokovic at Roland Garros -- has fueled a tennis fever among the youth in his home country, Brazil.

At the 2026 French Open, Joao Fonseca defeated Novak Djokovic in the third round, ending the Serbian legend’s bid for a record 25th Grand Slam title.

Brazilian teenager Joao Fonseca produced the biggest upset of the French Open so far on Friday, defeating Novak Djokovic in the third round and ending the...