João Fonseca’s rise in 2025 was one of the standout stories on the ATP Tour, as the 19-year-old Brazilian closed the season ranked World No. 24 with two ATP titles and a growing reputation for maturity beyond his years. His journey included a meaningful appearance at the Laver Cup, where he represented Team World under the leadership of new captains Andre Agassi and Pat Rafter. Reflecting on the week, he admitted the experience surpassed every expectation. “Yeah, [Andre] Agassi was super cool,” he said during an interview with
ESPN Brazil.
A major part of Fonseca’s Laver Cup memories came from his surprising connection with Rafter. While both captains were available to the players, the Brazilian spent considerably more time with the former US Open champion during matches and breaks. Rafter’s calm explanations and open conversations left a strong impression on the teenager, who valued the chance to learn directly from an icon of Australian tennis. “I actually got a bit closer to Rafter than to Agassi because we spent more time together on the bench,” he said.
He explained that Agassi’s role often kept him near the players actively competing, analysing points and offering immediate guidance during matches. Meanwhile, Fonseca and Rafter shared long stretches discussing tactics, match dynamics and the mental side of competition. For a 19-year-old still building his identity on tour, those exchanges became an invaluable source of confidence. The connection grew enough for Rafter to extend a personal invitation that took Fonseca by surprise. “Between the matches, Agassi was busy… Rafter and I were always chatting,” he said.
That mentorship continued even after the event ended. Fonseca revealed that Rafter invited him to visit Australia someday, an offer the Brazilian considered a testament to the relationship they had built during the week. The Laver Cup became more than just a team competition—it was a chance to create bonds with figures he had only admired from afar. For Fonseca, those days of conversations, observations and shared moments contributed significantly to his growth during a defining season. “In the end, Rafter even invited me to go to Australia someday,” he said.
A hesitant yes: Fonseca’s first taste of the Laver Cup stage
Fonseca initially hesitated when the invitation to join Team World arrived. Despite the honour, he questioned whether the event fit someone at his stage of development. Ranked around the top 50 at the time and surrounded by top-20 and top-10 players, the Brazilian wondered if an exhibition-style environment would benefit him. The step felt large, both in stature and atmosphere, prompting a moment of uncertainty from the teenager. “We had that feeling of, Wow, an exhibition, is this really for me?” he said.
His decision proved worthwhile. Fonseca competed on the opening day, delivering a composed performance to defeat Italy’s Flavio Cobolli 6-4, 6-3. It was his only match of the week, yet it set the tone for a strong campaign from Team World, who ultimately secured a 15–9 victory. The team was led by Taylor Fritz, who produced crucial wins over Carlos Alcaraz and Alexander Zverev—including the decisive victory on the final day to seal the title for the Agassi-Rafter era.
For Fonseca, the victory validated the sense of belonging he had questioned before the event. Surrounded by experienced teammates and guided by new leadership, he absorbed lessons related to professionalism, preparation and match intensity. The experience functioned as a bridge, placing him in an elite competitive environment while allowing him to maintain his youthful enthusiasm. It also strengthened his conviction that he can compete at the highest level. “I’m around 5 in the world; everyone else is top 20, top 10, but honestly, it was a great experience for me,” he said.
A season that signalled what comes next
Away from the Laver Cup, Fonseca’s season was equally impressive. He finished 2025 with a 26–16 record and two ATP titles—one at the Argentina Open (250) and another at the Basel Open (500). His run inside the top 25 marked him as one of the most exciting prospects on tour. Despite being eligible for the Next Gen ATP Finals, he opted to skip the event to rest and focus on a full preparation block for 2026, prioritising long-term progress over short-term exposure.
Fonseca’s year combined breakthrough results, mentorship from tennis legends and a growing sense of identity on the professional Tour. At just 19, he has not only shown the on-court quality required to climb higher but also demonstrated the maturity to make decisions that protect his future. With a solid foundation and valuable experiences guiding him into 2026, the Brazilian enters the next season positioned as one of the brightest emerging forces in men’s tennis.