(Add quotes, details) PARIS, March 10 (Reuters) - Olympique Lyon were held to a goalless home draw by Olympique Marseille which left them four points behind leaders Paris St Germain at the top of Ligue 1 on Sunday. The uninspired hosts dominated possession but never really threatened OM goalkeeper Steve Mandanda, waiting more than an hour to record their first attempt on target. The visitors had their chances in the first half but striker Andre-Pierre Gignac lacked a cutting edge. ... More...