Auxerre have become the first team to be relegated from Ligue 1 after they slumped to a 3-0 defeat at the Stade Velodrome.
The home side went in front just after the half-hour mark when Rod Fanni headed past Olivier Sorin from Mathieu Valbuena's corner.
Cesar Azpilicueta made it two 10 minutes after the break with a fierce left-footed shot from outside the box, which found the bottom left-hand corner.
The points were wrapped up in the final minute by Andre-Pierre Gignac, who slotted past Sorin after Morgan Amalfitano's through ball.