Luis Enrique's side is now relying on Monaco's clash with Nice to end in a draw, with one result already going in its favour after Marseille's defeat to Reims.

Saint-Etienne, however, stunned its opponent after just nine minutes when Lucas Stassin headed it in front, guiding his effort from Zuriko Davitashvili's cross home.

PSG found its feet in the game but failed to test Gautier Larsonneur in the Saint-Etienne goal, with Lucas Beraldo and Fabian Ruiz firing strikes over the crossbar.

But Luis Enrique's side was handed a way back into the match three minutes before the break when Florian Tardieu kicked through Goncalo Ramos inside the box.

Ramos dusted himself down to convert the penalty, but PSG was almost behind again soon after, but Stassin was unable to beat Matvey Safonov.

PSG was revitalised after the break and went ahead in the 50th minute after Mickael Nade's loose pass was ruthlessly punished by Khvicha Kvaratskhelia.

Doue then got in on the act just three minutes later, before Joao Neves put the result beyond doubt just after the hour as he stroked the ball beyond Larsonneur.

The Parisien side continued its second-half surge as Doue rifled the league leader four goals ahead, with the Frenchman's mazy run ending with a fierce strike into the roof of the net.

Ibrahim Mbaye added further gloss to the scoreline late on, bundling home his first Ligue 1 goal after being unselfishly set-up by Barcola inside the box.