Carlos Alcaraz and Jannik Sinner have continued their dominance on the ATP Tour in 2025, sharing the four Grand Slam titles.

Just as they did in the 2024 season, Alcaraz and Sinner combined to win the Australian Open, French Open, Wimbledon and US Open titles.

The Italian successfully defended his title in Melbourne as the Spaniard did the same in Paris, with their London and New York trophies swapping hands.

This year alone, they met in three of the four Grand Slam finals, along with the finals in Rome and Cincinnati.

It was Alcaraz who stole the bragging rights, winning four of their five meetings in 2025 and taking over Sinner as ATP number one after the US Open.

Spain's Carlos Alcaraz and Italy's Jannik Sinner pose with their trophies after Alcaraz won the men's singles final tennis match on day fifteen of the US Open tennis tournament at the USTA Billie Jean King National Tennis Center in New York City.Photo by CHARLY TRIBALLEAU/AFP via Getty ImagesRoger Federer left surprised by what Carlos Alcaraz and Jannik Sinner have done

Such dominance has not been seen in men’s tennis since the days of Federer, Rafael Nadal and Novak Djokovic.

And one part of the Big Three has now shared his verdict on the current superstars, with Federer saying on Tennis Channel: “I mean, I think we all knew that they were going to be good, that they were maybe going to be great, most likely.

“But we didn’t expect, I think, this kind of dominance right out of the gates. It’s really impressive, I must admit.

READ MORE: Laver Cup 2025: Players, rules, how to watch and everything you need to know

“And it’s amazing for the game. I think that they play back-to-back-to-back-to-back finals against each other with French, Wimby, Cincy, US.

“These are the biggest stages in our sport that we have. So, I mean, they’ve made a name for themselves. And now, obviously it begs the next question, who’s going to be the next guy?

“We know that Novak’s doing what he’s doing. He’s on a legendary career already but you know who’s going to be the next guy who wants to join that elite group.

“It’s going to be hard and it’s going to take some time and it’s the question also how long can they keep doing this because it’s not easy. I’ve been there, it’s hard, and they’re making it look very easy. So, really, really impressive.”

Roger Federer suggests where future Laver Cups will be held after London 2026

Federer is among those getting to watch Alcaraz’s latest efforts up close, with the latter representing Team Europe at the Laver Cup.

He won his doubles opener with Jakub Mensik in San Francisco, defeating Taylor Fritz and Alex Michelsen.

But Fritz recovered to win his singles clash with Alcaraz, with the third and final day now arriving at the Chase Center.

And Federer, who created the tournament, has now shared insight into future venues following its return to London next year.

He said: “Clearly the goal was to play in places that maybe don’t get to see tennis so often. So I think we did that here in San Francisco.

“Same for Berlin, same for Vancouver. Obviously we’re going back to London, where they see tons of tennis.

“But Europe is for big arenas. It’s not so easy to find like here in North America or around the world. But that was the idea, to travel with the Laver Cup.

Roger Federer and Joao Fonseca talk ahead of the 2025 Laver CupPhoto by Ezra Shaw/Getty Images for Laver Cup

“But it’s hard as we built out this stadium in an incredible way, just for three days. The work that goes in from the team is tremendous.

“But I’m happy that everything that I’ve had in my vision together with Tony came true and more. So let’s see what goes after London.

“Because in the beginning, the idea was to have it more in North America because of the player schedule.

“But Asia also probably would be not a bad move because of all the players now going to Asia right after. I would go to South America if I think, imagine this in South America with Joao [Fonseca] on the team or something. Oh my god.

“Anyway, look, we unfortunately have one Laver Cup once a year, but a lot of thoughts, and I’m happy that a lot of cities are already wanting to have the Laver Cup in their place now, which was not obviously the case in the beginning.”

Year Winner Score Runner-up Location Venue 2017 Team Europe 15–9 Team World Prague, Czech Republic O2 Arena 2018 Team Europe 13–8 Team World Chicago, United States United Center 2019 Team Europe 13–11 Team World Geneva, Switzerland Palexpo 2021 Team Europe 14–1 Team World Boston, United States TD Garden 2022 Team World 13–8 Team Europe London, United Kingdom The O2 Arena 2023 Team World 13–2 Team Europe Vancouver, Canada Rogers Arena 2024 Team Europe 13–11 Team World Berlin, Germany Uber Arena 2025 – San Francisco, United States Chase Center 2026 – London, United Kingdom The O2 Arena

Entire Laver Cup history

A home Laver Cup for Brazilian star Fonseca is an exciting prospect, but his current focus is on helping Team World clinch success this time around.

The teenager, who enjoys a huge following, shone on his Laver Cup debut with a singles win over Flavio Cobolli.