Hailing from Brazil, tennis prodigy Joao Fonseca created havoc at the 2025 Australian Open by registering the biggest upset in the men’s draw. The 18-year-old stunned No. 9 Andrey Rublev by registering a win in three sets (7-6(1), 6-3, 7-6(5)). In his career, Fonseca has lifted two Challenger titles as of February 2025, including the 2025 Canberra Tennis International. At the Canberra Tennis International, he defeated Ethan Quinn by 6-4 6-4. He won his maiden ATP Challenger title at the 2024 Lexington Challenger, winning against Li Tu by 6-1 6-4.
Fonseca won his first Masters 1000 match at the 2024 Madrid Open, defeating Alex Michelsen in the first round. He was awarded the title of the youngest Challenger winner of last season. His accomplishments also include qualifying for the Next Generation ATP Finals in 2024, the lowest-ranked player to achieve the feat. Coached by Guilherme Teixeira, Fonseca finished as the semi-finalist at the Lyon Challenger and quarterfinalist at the Brest Challenger, losing to Calvin Hemery and Benjamin Bonzi, respectively.
One of the biggest accomplishments of the current season includes lifting his maiden single title at the 2025 Argentina Open, where he defeated Francisco Cerundolo by 6-4, 7-6. With the win, he was able to achieve his career-high ranking of No. 68 on February 17, 2025.
What is the nationality of Joao Fonseca?
Joao Fonseca is of Brazilian nationality. He was born to his parents, Roberta and Christiano Fonseca, in Rio de Janeiro, Brazil. He started playing tennis when he was four at the Rio de Janeiro Country Club.
During an interview with Tennis365 at the Surbiton Challenger, Fonseca said, "Actually soccer was my first dream, every Brazilian kid has a dream of becoming a soccer player". He further added, "I’d be one of those kids with a ball playing on Copacabana beach and I was okay at it but, to be honest, I never seriously thought I could make a career out of it and when I picked up an injury playing, I decided soccer was not for me. It was a bit too dangerous."
Joao Fonseca's ATP titles
As of February 2025, Fonseca has won one singles title in the ATP Tour, which includes winning the 2025 Argentina Open. He reached his first ATP quarterfinal at the 2024 Rio Open, defeating Cristian Garin and top seed Arthur Fils in straight sets.
Joao Fonseca social media
Joao Fonseca has an Instagram account (@joaoffonseca) where he is followed by 826k followers as of February 2025.
Also Read: Joao Fonseca parents
FAQs on Joao Fonseca Nationality
A. As of February 2025, Joao Fonseca is ranked World No. 68 by the ATP.
A. According to the ATP website, Joao Fonseca is 6 feet 1 inches or 185 cm tall.
A. Sports brand On, Rolex and tennis manufacturer Yonex sponsor Joao Fonseca.
A. Joao Fonseca is a right-handed player.
A. Joao Fonseca started his professional tennis journey in 2024 by forgoing his college eligibility for the University of Virginia.
