The shot-stopper was felled by a firecracker during the weekend's clash, which was eventually abandoned, but avoided permanent damage to his eardrums
Lyon goalkeeper Anthony Lopes will need treatment for several weeks after he was struck by a firecracker in Saturday's game at Metz and diagnosed with a "sound trauma".
The contest at the Stade Saint-Symphorien was halted after 31 minutes while Lopes received treatment, having been felled inside his area by a number of pyrotechnics thrown from the stands.
Lopes then had to turn away quickly as a firecracker exploded on the ground close to his head, while Metz players urged those responsible in the crowd to stop.