Joao Fonseca: Sinner, Alcaraz and the Federer influence

Teen sensation Joao Fonseca sat down with Viv at the Brisbane International in January. One of the game’s most exciting rising stars, the Brazilian began 2025 outside the top 100 and surged to a peak world No.25 on the back of two ATP titles and third-round finishes at two Slams. After an injury-marred start to 2026, Fonseca reminded onlookers of his potential when he powered into the Indian Wells fourth round — his best result at a Masters tournament. Armed with explosive power and an impressively mature outlook for a 19-year-old, Fonseca opens up about the players he’d love to face, the rivalries he’d love to form, the people who have made his journey possible, and how he spends his time away from the court as his rapid rise continues.

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