Clermont-Ferrand - France have been hit by an injury crisis with scrumhalf Morgan Parra and backs Wesley Fofana and Remi Lamerat ruled out Monday for the rest of the Six Nations campaign.
Parra will be out for around 10 weeks with a ruptured cruciate ligament in his right knee, his Top 14 club Clermont announced.
He will miss the rest of France's campaign and Clermont's European Champions Cup quarter-final against Northampton on April 4.