At just 17 years old, Joao Fonseca, a tennis prodigy hailing from Brazil, is causing a stir in the tennis world as he provides assistance to renowned players Carlos Alcaraz and Jannik Sinner in their preparations for the upcoming ATP Finals in Turin. Despite his youth, Fonseca has already achieved the remarkable feat of being ranked as the No 1 ITF Junior singles player and is poised for a significant breakthrough in the senior rankings by 2024. His recent victory at the US Open Junior Grand Slam, coupled with a stellar performance at the 2023 Rio Open, has firmly established his standing as a highly promising talent in the sport. With a background in both tennis and soccer, Fonseca opted to pursue a career in tennis and has attained commendable success at a remarkably young age.