João Fonseca's Miami Open run ends with straight-sets loss to Alcaraz
João Fonseca's run at the 2026 Miami Open came to an end on March 21 after a straight-sets defeat to Carlos Alcaraz. The 18-year-old had started strongly, winning his first-round match the day before. His loss to the reigning champion marked the close of his campaign in Florida.
Fonseca entered the second round with confidence after a convincing 6-4, 6-3, 6-2 victory over Fabian Marozsan on March 20. His performance had drawn attention, but the challenge against Alcaraz proved far tougher.
Alcaraz stayed composed throughout the match, never allowing Fonseca to gain momentum. The Spaniard relied heavily on his serve, calling it his 'main weapon' in the post-match interview. He secured a 6-4, 6-4 win in just over an hour. Despite the loss, Fonseca earned praise from Alcaraz, who highlighted the young player's potential. The world number one noted that facing top competitors would help Fonseca develop further. Alcaraz now advances to the third round, where he will meet Sebastian Korda.
Fonseca's exit leaves his Miami Open record at one win and one loss for 2026. No further matches involving the teenager are scheduled in the immediate weeks following the tournament. Alcaraz, meanwhile, continues his title defence with a clash against Korda.
