Marseille missed a chance to move up to third spot in the French league on Sunday after being held 1-1 at Toulouse as an own-goal from Grenoble defender Bostjan Cesar lifted tired Lille to a 1-0 win.
Three days after beating Liverpool 1-0 in the Europa League round of 16 first leg, Lille were lucky to come away winners against tailenders Grenoble at their Villeneuve d'Ascq stadium.
Rudi Garcia's side were the only movers among the title chasers as they climbed to fourth with 51 points after 28 games, two points behind leaders Bordeaux and Montpellier who both drew on Saturday.
Didier Deschamps' Marseille could not find their way past Toulouse despite taking the lead on the half hour mark when Brazilian striker Brandao turned in a Mathieu Valbuena corner. Portuguese striker Paulo Machado drew Toulouse level nine minutes later with a superb effort into the right corner of the net. "It wasn't easy, we're just three days after a Europa Cup match (against Benfica, 1-1)," said Deschamps.
Lille, meanwhile, suffered another injury blow ahead of Thursday's trip to Anfield when new Portuguese signing Ricardo Costa suffered a left ankle injury to join Gervinho, Mathieu Debuchy and Tulio De Melo on the injured list.
The northeners were far from the form they showed against Liverpool but nevertheless dominated despite creating few chances, before Cesar helped their cause when he turned in a centre from Emerson into his own net after 47 minutes. Grenoble's 20th loss of the season leaves them certain of the drop.
Lyon held at home
Rennes moved up to eighth earlier Sunday after coming away with a 2-0 win over midtable Valenciennes. On Saturday, Lyon missed their chance to join the leading group, being held 1-1 at home to local rivals St. Etienne.
The former seven-time champions were a long way from their mid-week heroics at the Santiago Bernabeu when they sealed a 2-1 aggregate win over Spanish giants Real Madrid in the Champions League. A first half goal from striker Emmanuel Riviere put 17th-placed St. Etienne ahead with the hosts having to wait until 80 minutes for the equaliser from Argentinian striker Lisandro Lopez.
Lyon coach Claude Puel admitted: "We were coming off a big match. This week we did what was necessary in the Champions League but not in the league.
"It's disappointing because we've lost two points in the battle for the top three in addition to the two lost last week against Boulogne.
Leaders Bordeaux were held to a goalless draw at Monaco, as fellow challengers Montpellier and Auxerre played out a 1-1 draw.
Bordeaux remain top with 53 points after 27 games, with a game in hand on Montpellier, who also have 53, with Auxerre just a point behind in third.
Lyon are fifth with 51 points after 28 games, a point ahead of Marseille.
Meanwhile, Paris Saint Germain put their woes behind them with a Mevlut Erding hat-trick inspiring them to a 4-1 home win over Sochaux.
Guillaume Hoarau opened for PSG after 17 minutes before Erding doubled a minute later against his former side, with the Turkish striker claiming his second after 35 minutes.
Ryad Boudebouz got one back for Sochaux after 63 minutes when he stepped up to take a penalty, but Erding found the net again five minutes later.
Elsewhere, second-from-bottom Boulogne shocked Nancy 3-1, as relegation-threatened Nice - who sacked coach Didier Olle-Nicolle earlier in the week - came away with a 1-0 win against Le Mans with Lorient beating Lens by the same scoreline.