Yoann Touzghar snatched a valuable point for strugglers Lens as they were involved in a 3-3 draw with Montpellier.
Montpellier snapped a seven-game winless away streak with a 4-0 thrashing of Rennes on Saturday
St Etienne followed up their derby victory over Lyon by seeing off Montpellier 2-0 to climb to third place in the Ligue 1 table.
Paris St Germain made it nine successive wins in all competitions by beating Nice 1-0, while Rennes beat Monaco 2-0.
Caen are out of the Ligue 1 relegation zone following a 1-1 draw against Montpellier.
Marseille returned to the top of Ligue 1 with a 3-1 victory over Bordeaux on Sunday, with Montpellier also victorious.
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