France scrum-half Rory Kockott could miss the team's next Six Nations game with Wales due to a leg injury.
The 28-year-old, who has made five appearances for Les Bleus, has been ruled out of club side Castre's Top 14 match against Oyonnax this weekend.
France welcome Wales to Paris on February 28, but Castres medical staff have predicted that he will not be back to full fitness until the start of next month.
Kockott made his first international start for the French during their opening-weekend victory over Scotland.
France's winning start was ended last weekend as they were beaten 18-11 by holders Ireland in Dublin.
