Lyon striker Alexandre Lacazette is set to miss several weeks after injuring his thigh in Saturday's 4-2 defeat to Bordeaux.
Lacazette limped off near the end of the game, and club president Jean-Michel Aulas confirmed the setback to his start player after the game.
"It's a nightmare of an afternoon,'' Aulas said after the defat. "The result was very disappointing and we have more bad news.
"[Lacazette] felt a really big pain when he made a run. The doctor will speak tomorrow but we're expecting it to be a few weeks."