If the past two ATP seasons are anything to go by, Carlos Alcaraz and Jannik Sinner head the top of the class by a country mile.
The question of who might emerge as a viable challenger to the Spaniard and Italian is a natural topic of conversation. Brazilian sensation Joao Fonseca is one of the potential candidates hoping to create a three-horse race in the years to come.
After bursting on the scene at his hometown tournament as a 17-year-old in Rio de Janeiro during the 2024 season—a significant week that influenced his decision to turn pro—Fonseca produced a breakthrough campaign to finish inside the Top 25. An inaugural title in Buenos Aires, third-round runs at Roland Garros and Wimbledon, and an ATP 500 triumph at Basel were a few of the highlights of note.
What didn’t happen throughout his 2025 rookie season as an ATP-level competitor? The chance to face either of the men who’ve combined to win the past eight Grand Slam tournaments.
