Bordeaux missed the chance to return to the top of Ligue 1 as first-half goals from Christophe Mandanne and Moustapha Diallo sent them to a 2-1 defeat at lowly Guingamp.
Willy Sagnol's side had started the new season in fine style but had only Cheick Diabate's late consolation to show for their efforts as the hosts hung on to move out of the bottom three.
Guingamp were impressive from the start with Claudio Beauvue bringing a save out of Cedric Carrasso before former Newcastle man Sylvain Marveaux set up the opener in the 26th minute.
Marveaux delivered a 30-yard free-kick onto the head of Diallo who nodded the ball past Carrasso to open the scoring.
And eight minutes later the home side extended their lead when Jeremy Pied was hauled down by Mariano in the box and Mandanne stepped up to send Carrasso the wrong way from the spot.
Bordeaux were given hope late on when Thomas Toure cut the ball back for Diabate before the powerful striker finished with aplomb on 85 minutes, but the hosts held out for only their second three points of the season.
Lille continued their good start to the season with an impressive 2-0 win against Nantes, who were made to pay for not making the most of their dominance in the first half.
Second-half goals from Divock Origi and Marco Lopes earned Rene Girard's unbeaten side the spoils as they moved on to 11 points from five games.
Nantes, meanwhile, remain on seven points after slumping to their second loss.
Andre-Pierre Gignac's goal in the first minute sent Marseille on the way to a 3-1 win over Evian as Marcelo Bielsa's side registered their third consecutive league victory.
Gignac got Marseille off to a perfect start at the Parc des Sports by opening the scoring in the first minute, before Giannelli Imbula notched a second a minute before half-time and Florian Thauvin struck a third shortly after the hour mark.
Clarck N'Sikulu netted for Evian in injury time but it proved to be nothing more than a consolation strike for Pascal Dupraz's side.
The result sees Bielsa's men move up to third place, just a point behind Lille. Evian, meanwhile, remain bottom with just one point form their opening five matches.