In the 51st, Chevanton's neat turn and goal-bound shot was blocked by defender Jean-Michel Badiane.
Ivory Coast midfielder Bonaventure Kalou led an immediate counterattack but shot across goal. He was replaced shortly afterward, walking past coach Laurent Fournier and into the dressing room.
Also Sunday, it was: Lille 2, Strasbourg 0; Sochaux 1, Lens 1; and Troyes 2, Rennes 1.
Fifth-place Lille followed up its 1-0 home win midweek over Manchester United with goals from Peter Odemwingie and Stefan Lichtsteiner.
Troyes fell behind to a goal from Yoann Gourcuff but rallied on goals from Zied Jaziri and Karl Tourenne.
Brazilian striker Ilan scored his fifth of the season as Sochaux took a 10th-minute lead but Daniel Cousin's sixth of the campaign earned Lens a point.
Vassilis Torosidis scored an own-goal and Predrag Djordjevic converted a penalty to help Olympiakos beat nine-man Xanthi 2-0 and reclaim first place in the standings.
Olympiakos has 21 points from nine games, one ahead of AEK Athens, which beat Kallithea 2-0 Saturday. Xanthi, which had led the 16-team standings for the last three rounds, dropped to third place with 18 points.
Panathinaikos retained fourth place with 17 points after a 2-0 win over OFI Crete.
Olympiakos went ahead in the first minute when Torosidis headed a cross by Pantelis Kafes into his own net.
RSS