Paris St Germain got their Ligue 1 title bid back on track with a 2-1 victory at home to free-falling Marseille.
Jeremy Menez put the capital club in front in the sixth minute and Alex grabbed the winner just after the hour mark, only two minutes after Andre Ayew had equalised.
PSG finished the game with 10 men following the late sending off of Mohamed Sissoko, but they still held on to record their first win in four in the league and move level on points with leaders Montpellier, who have a game in hand.
The season is going from bad to worse for OM, though, who have now lost 10 and drawn one of their last 11 games in all competitions.
That run has dropped them to ninth place, closer to the relegation zone than European qualification.
Caen picked up three precious points in their fight against relegation as Nicolas Seube's early effort proved sufficient to defeat Bordeaux 1-0 at Stade Michel d'Ornano.
Seube's header after two minutes sealed a first win in seven Ligue 1 matches for Caen, who are now out of the drop zone by one point.
Defeat for Bordeaux means they have now gone four games without a win and are dropping away in the race for a European berth.
The visitors were left to rue a penalty miss by Ludovic Obraniak in the 15th minute that might have changed the tide of the match, but Caen were good value for the win.
Nice also took an important step towards survival with a 2-0 home win over relegation rivals Lorient.
Goals from Anthony Mounier and Renato Civelli shortly after half-time set up a Nice win that moved them two points clear of Lorient, who fell into the drop zone.
Lorient's day was further soured with the dismissal of Alaixys Romao on 78 minutes.