Nantes captain Olivier Veigneau has committed his future to the Ligue 1 club until 2016.
Sochaux suffered relegation from Ligue 1 for the first time after losing 3-0 to Evian, while PSG beat Montpellier 4-0.
Departing Bastia coach Frederic Hantz and retiring goalkeeper Mickael Landreau bowed out with a goalless draw against Nantes.
Title honours may have been decided but Ligue 1 enters its final round with the agenda dominated by the Survival Final.
Paris Saint-Germain celebrated their title triumph with a win over Lille, while St Etienne capitalised with a victory.
Mevlut Erdinc starred as St Etienne kept alive their Champions League hopes with a comfortable 3-1 win at Nantes.
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