Always last in L1, the 60-year-old technician could not resist the third consecutive defeat of ASSE, the ninth of the season.
He is the first coach to be dismissed this season in Ligue 1.
Puel received a letter of invitation to an interview with management on Monday, we learned from the same source.
The "Greens" are also in great difficulty off the field.
They have failed for several years in the search for a buyer, and the behavior of some of their supporters has led to sanctions at the Geoffroy-Guichard stadium.
The coach of Saint-Etienne, Claude Puel, during the home defeat of his team, beaten 5-0 by Rennes, on December 5, 2021 at the Stade Geoffroy-Guichard OLIVIER CHASSIGNOLE AFP
During the defeat against Rennes, the two stands behind the goal were closed.
Claude Puel arrived in Saint-Etienne in October 2019, after the sidelining of Ghislain Printant.
Under his leadership, the Greens finished 17th in 2020 and 11th in 2021 and played in the final of the 2020 Coupe d France, lost 1-0 to PSG.
© 2021 AFP