Lille manager Christophe Galtier has announced is leaving the club, two days after leading them to the Ligue 1 title.
Galtier, 54, who joined Lille in 2017 after spending eight years at St Etienne, told L'Equipe that he had already informed club president Olivier Letang of his desire to move on.
"I informed my president... that I was going to leave," Galtier said. "I am quite simply convinced that I have done my time here. That this four-year cycle is long enough for a coach.
"Having done four years, I feel inside that it's time to leave this beautiful club, this magnificent club ... I'm leaving Lille with an incredible result, I need something else. I don't want to fall into a routine."
Letang later said he had tried to change Galtier's mind but respected his decision and thanked him for the "wonderful memories" he had left them with.
Letang added that Galtier's departure, tipped to be to fellow Ligue 1 side Nice, would have to be negotiated as he had one year remaining on his contract.
Galtier was close to former Lille owner and president Gerard Lopez, who left amid the club's financial difficulties last December.
Lille sealed their first top-flight title since 2011 after beating Angers 2-1 at the weekend to finish the season with a club record of 83 points, one ahead of Paris St Germain.