Defender Timothee Pembele scored his first goal for Paris Saint-Germain as the champions earned a 4-0 home win over Strasbourg on Wednesday to keep pace with Ligue 1 leaders Lyon and second-placed Lille ahead of the Christmas break.
Lyon will head into the two-week hibernation on 36 points from 17 games after easing to a 3-0 home rout of Nantes, with Lille behind them solely on goal difference after a dramatic 3-2 win at eighth-placed Montpellier.
PSG stayed a point adrift of the top two in third after a Kylian Mbappe tap-in followed by an Idrissa Gueye piledriver and a poacher's finish from striker Moise Kean tore Strasbourg apart in the closing stages.
PSG were without Brazil forward Neymar through an ankle injury and their opener came from an unlikely source as 18-year-old Pembele swept in a rebound in the 18th minute after goalkeeper Elji Kawashima parried Angel Di Maria's shot.
The visitors started to crumble in the last 10 minutes as Di Maria robbed a Montpellier defender of the ball and squared it to Mbappe, who could not miss from three metres with the net left unguarded.
Gueye then hit the bottom right corner with a screamer from 30 metres before Kean wrapped things up with a shot that cannoned off two defenders on the line into the net.
First-half goals from Karl Toko Ekambi, Tino Kadewere and Lucas Paqueta fired Lyon to a comfortable win over visitors Nantes while Lille overcame Montpellier thanks to a late goal from Turkey striker Burak Yilmaz.
Timothy Weah and a penalty from Jonathan Ikone had Lille 1-0 and 2-1 in front while Gaetan Laborde and Andy Delort hit back for Montpellier before Yilmaz netted an 87th-minute winner for the visitors.
Marseille dropped down to fifth, losing ground in the title race after a surprise 2-1 defeat at Angers while sixth-placed Monaco were held to a 2-2 draw at 10-man St Etienne, who had Eliot Matazo sent off in the first half.
Sofiane Diop gave the home side an early lead and Kevin Volland salvaged a point for them with a 48th-minute effort after Mathieu Debuchy and Denis Bouanga had turned the tide.
Additional reporting courtesy of Reuters.