PARIS, Aug 6 (Reuters) - Olympique Marseille were held to a disappointing goalless draw in their opening Ligue 1 match of the season at promoted Sedan.
The Provence side were without Franck Ribery, who has said he wants to leave the club.
Sedan, back in the top flight after three seasons in the Ligue 2, had the best chance in a dull game when striker Masour Boutabout hit the woodwork on 20 minutes.
Olympique Lyon, chasing an unprecedented sixth successive title, lead the standings thanks to their 3-1 win at Nantes on Friday.
Girondins Bordeaux, runners-up last season, trail the leaders on goal difference after Marouane Chamakh and Julien Faubert earned them a 2-0 victory over Toulouse on Saturday.
Also on Saturday, Lille grabbed three points with a 2-1 win at Stade Rennes courtesy of goals by Mathieu Bodmer and Kader Keita.
Ivory Coast striker Aruna Dindane scored eight minutes before the interval to give RC Lens a 1-0 win over Troyes as Paris St Germain slumped to an embarrassing 3-2 home defeat against promoted Lorient.
Monaco, with Czech forward Jan Koller in the starting line up, were beaten 1-0 at Nancy and were reduced to 10 men after David Gigliotti picked up a straight red card for unsporting behaviour.
Former Portsmouth coach Alain Perrin led Sochaux to a 2-1 win at St Etienne thanks to goals from Jerome Leroy and Karim Ziani.
Back in the top flight 13 years after being demoted following a match-fixing scandal also involving Olympique Marseille, Valenciennes held AJ Auxerre to a 1-1 draw in Burgundy.