Marseille missed the creativity of Dimitri Payet as they dropped points in the race for a Champions League place, held 0-0 at home by Angers in a dull French Ligue 1 encounter.
With Payet sidelined, Marseille's attack failed to function on Saturday.
In a scrappy first half, a resolute Angers side came closest to scoring in the 21st when striker Sada Thioub's deflected curler from 20m just missed the target.
Substitute Saif-Eddine Khaoui had the home side's first shot on target in the 77th minute but his tame effort went straight at goalkeeper Ludovic Butelle.
Although second-place Marseille extended their overall unbeaten run to 12 games, they missed the chance to extend their lead over third-place Rennes, who drew 1-1 at Nice on Friday and are five points behind Marseille.
Montpellier meanwhile have moved up to fourth spot with a 2-1 home win against 17th-place Dijon.
Midfielder Florent Mollet put them ahead in the 56th, two minutes after Dijon had forward Mounir Chouiar sent off.
Striker Andy Delort struck midway through the second half before midfielder Mama Balde pulled a goal back.
Monaco slipped to 12th with a 3-1 home loss to seventh-place Strasbourg, making it 10 goals conceded in three league games for new coach Robert Moreno.
Striker Ludovic Ajorque, midfielder Adrien Thomasson and centre half Stefan Mitrovic netted for Strasbourg, while Montenegro forward Stevan Jovetic grabbed a consolation.
Tunisia forward Wahbi Khazri grabbed both goals as Saint-Etienne beat 19th-place Nimes 2-1.
Senegal striker Habib Diallo headed powerfully home after three minutes as Metz won 1-0 at Reims to steer away from relegation.
Brest moved closer to midtable after Irvin Cardona's late effort secured a 2-1 home win against 18th-place Amiens.
Australian Associated Press