Raphael Varane and Ibrahima Konaté were among five France players who missed training on Friday, just days before the World Cup final against Argentina.
The two center backs have reportedly become the latest members of the France squad to be affected by a virus, according to French media.
Three other players — Dayot Upamecano, Adrien Rabiot and Kingsley Coman — were struck down by illness at the start of the week and had to isolate.
Upamecano and Rabiot were back in training on Friday, but Coman was still missing. Theo Hernandez and Aurelien Tchouameni were also absent, French sports daily L’Equipe reported.
France winger Ousmane Dembele said he and his teammates were not worried about key players becoming sick ahead of Sunday’s final.