Nice president Jean-Pierre Riviere has taken aim at Olympique Marseille midfielder Matteo Guendouzi after Sunday's abandoned Ligue 1 clash.
The on-loan Arsenal midfielder showed pictures of red marks around his neck after the brawl with Nice fans and players.
But Riviere has questioned Guendouzi's images: "Apart from the photo that we see everywhere, he has shown nothing.
"There was no violence on OM players.
"By the way, Guendouzi, with supporting images, has no marks on his neck when he is on the pitch."