Nice secure road win over Lille
Claudio Ranieri's men made it four wins from their opening five games thanks to Radamel Falcao who scored his fourth league goal of the season from the penalty spot early on.
A third defeat for the visitors leaves Les Merlus without a point or a goal on their travels so far this season and languishing in the bottom half of the table.
Two first-half Dario Cvitanich strikes all but secured the visitors their first win on the road this season and ensured a place above their opponents in the league table.
Two goals from Benjamin Corgnet, who scored either side of a 25-yard strike from Romain Hamouma, saw the visitors win well. they were denied a clean sheet only by an 80th-minute penalty from substitute Maor Melikson.
Corgnet opened the scoring after 17 minutes, Hamouma doubled the lead in the 47th minute, and six minutes later Corgnet netted again.
Lucas Mendes snatched a late equaliser for Marseille at Toulouse, earning a 1-1 draw. He netted in the 87th minute, with Wissam Ben Yedder having put the home side ahead after 66 minutes.
Fabrizio Ravanelli's Ajaccio, too, have yet to experience that winning feeling.
They were 3-0 behind at home to Evian and managed to gain a semblance of respectability with two late goals.
Brice Dja Djedje put Evian ahead with a superb free-kick strike after 31 minutes and Kevin Berigaud pounced in the 43rd and 52nd minutes to stretch the lead.
Paul-Bastien Lasne and Junior Tallo scored in the final 10 minutes to narrow the winning margin to 3-2.
Bastia went ahead when Wahbi Khazri netted in the 47th minute, before Mustapha Yatabare wiped out the lead with a penalty after 88 minutes. Yatabare then missed an injury-time penalty to win the game.
On Friday, Paris St. Germain moved to the top following their 2-0 victory over Bordeaux at the Stade Chaban-Delmas.
Blaise Matuidi bundled the defending champions ahead on the half-hour mark before Lucas Moura sealed the win in the 64th minute.