Marseille made a mockery of Lille's formidable home form with a 4-0 mauling at the Stade Pierre-Mauroy.
PSG are on the brink of winning the Ligue 1 title after Caen stunned Lyon 3-0 on Saturday, while Metz were relegated.
Two late goals saw Toulouse come from behind to snatch a 3-2 victory over Lille.
Lens' relegation from Ligue 1 was sealed on Sunday afternoon as they slumped to a 3-1 loss at derby rivals Lille.
Ezequiel Lavezzi scored a hat-trick as PSG highlighted their Ligue 1 title credentials with a 6-1 demolition of Lille.
Lyon returned to the top of Ligue 1 with a draw against St Etienne, while Lille kept up their hunt for fourth.