Yoann Huget is to miss the rest of the Rugby World Cup after reportedly tearing his anterior cruciate ligaments in France's 32-10 win over Italy.
The French winger appeared to lose his footing on the hour mark, trailing his leg behind him as he was helped off by two of his teammates.
The 28-year-old's leg was put in a brace after the game, as France coach Philippe Saint-Andre suspects that the Toulouse winger tore his ACL.
"It looks like Yoann Huget has done his cruciate ligament - this is not the best news," Saint-Andre tells ITV Sport.
"He is a very important player and a big player to lose for this team. After that injury for four or five minutes we were a bit shaky.
"It's very important that we started with a win and we knew how tough Italy were. We wanted four tries but Italy defended well. We have started very well but we must continue. We have a win, but a bad injury."
The injury can be caused by an over-stretching or tearing of the ACL in the knee, with a recovery time of six to nine months.
