Born in the Paris region, the young defender joined the club aged 12 from Athletic Club Boulogne Billancourt. His 1.96m physique means he caught the eye early, and his physical attributes are allied with ability on the ball, which led him to sign his first pro contract in summer 2021 aged just 16. A few months later, El Chadaille made his first-team debut in the Coupe de France. Surely the first appearance of many for the club.
In June 2022, along with club teammate Warren Zaire-Emery, he enjoyed his first international experience by helping France win the U17 EURO title.