"Sinner is more like a robot. Carlos, he can do everything" - Joao Fonseca underlines key differences between Alcaraz and Sinner aided by recent matchups

It is fair to say that Joao Fonseca's recent run of matches has not been the easiest. Two of his prior three contests have come against Jannik Sinner and Carlos Alcaraz. The Latter was able to hold the young Brazilian at bay 6-4, 6-4 in the second round of the Miami Open, with Fonseca now able to explain the differences in capabilities between the two best players in the world.

It was the first ATP meeting between the top two in the world in a dream draw for tennis fans all around the world. Fonseca has been highly touted to become one of the best players on the ATP Tour in the future with many believing he will be the one to bridge over to Alcaraz and Sinner, who currently rule in a league of their own, virtually unchallenged at times.

There is still a long way to go before discussions can be made around this possibility, but the signs look good. Two ATP titles in his first year on tour along with a career-high ranking of world number 24 was a stunning introduction to the big time for the sensation. Fonseca's form would dip due to injury at the start of 2026 but he looks to be getting back up to speed, putting in two commendable performances against the top two.

It was a first-ever fourth-round appearance at Masters 1000 level for the 19-year-old who was looking to continue his progress against the world number two. He squandered three set points in the first set, and the Italian capitalised enroute to winning two tiebreaks and ending Fonseca's ambitions, but not without being tested greatly. He was looking to produce a similar performance to the world number one, but Alcaraz turned out to be as tough. Two breaks of serve, one in each set, were enough for the seven-time Grand Slam champion to move on as Fonseca's Sunshine swing comes to an end for another year.

Fonseca now has a perfect picture of how those two play, offering his opinions and comparisons. “I think Alcaraz has more arsenal than Sinner," he firmly stated in his press conference. "Sinner is more like a robot that just kills the ball and does everything perfect. Carlos, he can do everything. He can do with topspin, can fire the ball, he has good movement. Goes to the net. He has everything. It's more difficult to understand the game. He breaks a lot your rhythm.”

He unveiled how Sinner's style allowed him more joy, compared to the brutal reality of playing against Alcaraz. “I think Jannik's game helped me to enter the court with no fear, trying to play my game,” Fonseca said. “But I think I didn't got the opportunities that I had, and of course he played good. He's No. 1 in the world. But I need to think about my mistakes and try to improve.”

Overall, the main difference was that Alcaraz had every tool at his disposal. “He has most of everything," he admitted. "So you don't know what's coming, and if it's coming serve, serve and volley, if it's going serve wide and do a plus-one shot, you kind of don't know. So that's the difficulty of playing against him. You need to almost play a perfect match.”

This was not the first time facing off against Alcaraz. The duo had previous experience against each other at the Hard Rock Stadium back in December when they went toe-to-toe at the Miami Tennis Invitational. Alcaraz won the exhibition match with a ridiculously tense final-set tiebreak. It was a taste of things to come in what could be a blossoming rivalry for the future.