The 24-year-old Morocco international is a product of Le Havre’s academy and becomes the club’s fifth signing of the summer after Sota Nakamura, Vincent Sasso, Kaito Mizuta and Timothee Pembele.
Richardson endured a difficult 2025/26 campaign, making just nine appearances across spells with Fiorentina and Danish side FC Copenhagen, where he spent the second half of the season on loan.
The Nice-born midfielder will now hope a return to familiar surroundings can help revive his career.
Richardson joined Fiorentina from Stade de Reims in 2024 for €9 million and remains under contract with the Serie A club until 2029. He has made 43 appearances for La Viola, scoring twice and providing one assist.
