Ousmane Dembele scored twice as Paris Saint-Germain came from behind to beat Brest 3-1 in Ligue 1 on Saturday, extending their perfect start to the French season.

Brest, preparing to make their debut in the Champions League next week, took the lead at the Parc des Princes when Romain Del Castillo converted a penalty on the half-hour mark.

However, Dembele headed in from a Marco Asensio cross to equalise for PSG shortly before half-time, and two goals in two minutes in the second half sealed their fourth win in as many outings so far this season.

Fresh from scoring twice in Spain's 4-1 win in Switzerland last week, Fabian Ruiz curled in a fine strike to put PSG ahead on 73 minutes, and Dembele followed up to make it 3-1 a minute later after a Randal Kolo Muani effort had been thwarted.

Luis Enrique's team have now scored 16 goals altogether in four Ligue 1 games since the close-season departure of Kylian Mbappe to Real Madrid, and are in good shape heading into Wednesday's Champions League opener against Girona.

PSG are two points clear at the top from Marseille and Monaco, who both recorded impressive wins earlier on Saturday.