Joao Fonseca's profile: Age, height, parents, coach and more of Brazilian tennis sensation

Brazilian teen Joao Fonseca was one of the first surprises of the 2025 Australian Open, after he defeated ninth seed Andrey Rublev. Check out all you need to know about this young talent.

• She is a former World No. 1, three-time Grand Slam champion and struggled with addiction
• Former World No. 3 picks greatest player of all time between Federer, Djokovic and Nadal