Christophe Galtier has stepped down as head coach of Lille just two days after they won the French league title.
The 54-year-old helped Lille secure their first Ligue 1 championship in a decade on Sunday, finishing one point ahead of Paris St-Germain.
He had been expected to leave after new owners took control of the club halfway through the season.
“I simply have the deep belief that my time is up here,” he told L’Equipe.
He said he was moving on to avoid “falling into a routine”.
Lille later said they accepted his decision.