18-Year-Old Joao Fonseca Sensationally Wins 2024 Next Gen ATP Finals
Although Sinner was born on August 16th, 2001, and Fonseca on August 21st, 2004, meaning there are only five days (and three years) between their birthdays, since the Next Gen ATP Finals were held in November in 2019, Sinner was almost two months younger than Fonseca when he won the title.