 Mamadou Niang is expected to be out for three weeks |
Senegal striker Mamadou Niang faces three weeks on the sidelines after damaging his left knee.
The 27-year-old suffered the injury during Saturday's French league opener against Strasbourg.
Niang damaged a knee ligament which is expected to keep him out for less than one month.
He started the 0-0 draw in Strasbourg after scoring 12 goals in 37 games last season.