Clermont's star centre Wesley Fofana is set to miss the Top 14 Final through injury according to reports.
The France international picked up an injury on Thursday during Clermont's training session at Chambon-sur-Lignon, before going for scans at a hospital in Saint-Etienne, according to La Montagne.
Losing Fofana is another major setback for Clermont after the injuries to Noa Nakaitaci and Jonathan Davies in recent weeks.
The exact area or seriousness of Fofana's injury is not yet known but France coach Philippe Saint-André will be hoping the setback isn't a major one for the 27-year-old.
With Fofana and Davies unavailable for Saturday's big game, Clermont are set to start Benson Stanley and Aurélien Rougerie in midfield, with their starting XV to be confirmed on Friday.