When FC Nantes was promoted to Ligue 1, the stadium was renovated and enlarged for 25,000 spectators. In May 1965, it was renamed Marcel-Saupin, after the recently deceased president and founding member of FC Nantes, despite his links to collaborators during World War II.
When FC Nantes achieved promotion to Ligue 1, the stadium underwent renovations and expansions to accommodate a larger audience. In May 1965, it was renamed Marcel-Saupin Stadium in honor of the late president and co-founder of the club, despite his complicated history during World War II.