Marseille's perfect start to the Ligue 1 season came to a grinding halt as they were trounced 4-1 at Valenciennes.
The hosts raced into a 2-0 lead in the first half through Gael Danic and Anthony Le Tallec before Marseille's dismal afternoon took a further nosedive when goalkeeper Steve Mandanda inexplicably rolled the ball out to VA's Foued Kadir, who had a simple task to fire home.
Le Tallec added his second after the break before Jordan Ayew bagged a late consolation for the beleaguered visitors. The defeat ends a run of six straight wins at the start of the season for OM.
Lyon blinked first in the battle of two unbeaten sides as goals from Benoit Tremoulinas and Cheick Diabate gave Bordeaux a 2-0 win.
Remi Garde's men were left to rue a disallowed goal from Alexandre Lacazette as they strived to peg Bordeaux back following Tremoulinas' deflected opener.
But try as they might, Les Gones could not find a way past a determined Cedric Carrasso in the visiting goal, with Diabate confirming Les Girondins' ascent to fifth place in the league table.
Kossi Agassa denied St Etienne all three points at the death as plucky Reims took a point from a 0-0 draw.
Visiting goalkeeper Agassa endured some shaky moments as Les Verts dominated the creative play - ex-Leeds man Max Gradel at the heart of the performance - while opposite number Stephane Ruffier also remained resolute.
But it was Agassa who repelled Brandao's acrobatic effort deep into stoppage time to extend Reims' unbeaten run in Ligue 1 to a fifth game, and leave St Etienne without a league win in four attempts.