Bernardo Silva struck a second-half brace as Monaco moved up to third in Ligue 1 with a comfortable 3-0 win over Caen.
An injury-time goal by Nicolas Maurice-Belay gave Bordeaux a 2-1 home victory against relegation-threatened Lens.
Caen struck twice in the last 10 minutes to stun Nantes and move six points clear of the drop zone in Ligue 1.
Metz passed up the chance to collect some much-needed points as they held Caen to a goalless draw on Saturday night.
PSG went top of Ligue 1 for the first time this season after title-rivals Lyon lost 2-1 at home to 10-man Nice on Saturday.
Ivory Coast winger Max-Alain Gradel scored for the fourth straight match as Saint-Etienne secured a 3-2 win at struggling Metz.
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