Marseille have appointed Jorge Sampaoli as their new coach, the troubled French club's American owner Frank McCourt announced in a statement.
Sampaoli, a much-traveled Argentine, replaces Andre Villas-Boas who was suspended on February 2.
McCourt, who promised "profound changes" at the club, also replaced president Jacques-Henri Eyraud, who has become a target of fan discontent, with sporting director Pablo Longoria.
McCourt said Eyraud would be joining the club's supervisory board.
Marseille, second when last season was cut short, are seventh this season, 20 points behind leaders Lille.
"This is a new chapter for Olympique de Marseille, and I am personally committed to making it a success," McCourt said in the statement.
"I have entrusted the presidency of the club to Pablo. His experience as sports director and talent scout is matched only by his love of the game. His main priority will be to put football back at the heart of OM."
Sampaoli's arrival had been expected since he requested the termination of his contract with Brazilian club Atletico Mineiro on February 22.
The 60-year-old is a former Chile, Argentina, and Sevilla coach. He has signed a contract with Marseille until June 2023.
Frank McCourt announces major changes, opening a new chapter for Olympique de Marseille.— Olympique de Marseille 🇬🇧 🇺🇸 (@OM_English) February 26, 2021