Marseille kept the Ligue 1 title race just about alive as Mathieu Valbuena's first-half goal earned them a 1-0 victory at Lorient.
The France midfielder followed up to score after Andre Ayew's effort had been saved to secure a fourth 1-0 win in five games for OM, who are getting into a habit of grinding out results.
The match ended on a sour note, though, with Lorient goalkeeper Fabien Audard and Ayew both sent off for clashing after the final whistle.
The result allowed Marseille to close the gap on leaders Paris St Germain to six points, but the capital club can re-establish a nine-point advantage if they win their game in hand at Evian on Sunday, with just 12 left to play for after that.
Dennis Oliech's stoppage-time goal sealed a valuable win for Ajaccio after they came from behind to beat Montpellier 2-1 in a game which saw both sides finish with 10 men.
Oliech headed Ajaccio ahead with only seconds left on the clock after Andy Delorte had cancelled out Anthony Mounier's strike for Montpellier.
Brest slipped nearer to Ligue 2 after a 2-0 defeat to Rennes. First-half goals from Abdoulaye Doucoure and Victor Montano did the damage and while Rennes remain in the top half of the table, Brest are concerned only with survival.
They are five points adrift of that line, though, a situation which would become even more bleak should Evian earn an unlikely result tomorrow against leaders Paris St Germain.
Bastia and Toulouse did little to set pulses racing as they played out a drab stalemate that leaves both still mired in mid-table mediocrity.
Reims edged away from the Ligue 1 relegation zone following a goalless draw at Bordeaux.
Hubert Fournier's side enjoyed the best of the chances and Floyd Ayit saw a shot cleared off the line late on as they had to be content with a point.
Nancy goalkeeper Damien Gregorini earned his side a point with an excellent display against Valenciennes at the Stade Du Hainaut.
Nancy, rock bottom for so much of this season, are now a point above the relegation zone with four games to play after a six-match unbeaten run.
Information from the Press Association was used in this report