Marseille coach Marcelo Bielsa has quit his post after just one match of the new season.
Marseille lost to Caen at home by one goal to nil.
The Argentine, after guiding Marseille to fourth spot last season, called a news conference and told the assembled media that he had finished his work and was returning to his country.
Marcello Bielsa had been linked to the vacant Mexico job earlier this week.
The Argentine did not inform the players of his decision in advance.