France captain Antoine Dupont's hopes of lifting the Rugby World Cup in front of his home fans have been put on indefinite hold after the talismanic scrum-half sustained a facial fracture on Thursday night.

Dupont, 26, suffered the injury in France's record 96-0 win against Namibia following a clash of heads with Johan Deysel, whose subsequent yellow card for the 45th-minute collision was upgraded to red following a review by the television match official.

The French Rugby Federation confirmed the extent of Dupont's injury on Friday, but said it was uncertain how long the scrum-half will be unavailable for.

A tearful Dupont went to hospital in nearby Aix-en-Provence, and the French Rugby Federation said: "Specialised surgical advice was requested to assess how long he will be unavailable for."

France's final pool game is against Italy in Lyon on October 6, before a quarter-final – probably against Ireland or South Africa – the following weekend.

If Les Bleus reach the semi-finals, they take place in Paris on October 20 and 21.

Former world player of the year Dupont has been the star performer in a resurgent French team under the direction of head coach Fabien Galthie.

And while it is hoped he can return before the end of the tournament, there must also be doubts about his future participation as France target a first world title.

France attack coach Laurent Labit said on Friday: "We always have a hope that Antoine will continue the adventure with us.

"We will leave the time for two-three days to have the opinion of a specialist. It's Antoine and the surgeon who will make the decision.

"For us, Antoine hasn't finished the competition. We have three days in front of us. We hope to have good news after the three days.

"He is in hospital now. He will leave by the end of the morning.

"Antoine certainly imagined the worst before the first examinations. After the initial tests, Fabien (Galthie) went to see him.

"Today, we are just waiting for the appointment with the specialist to see what he can or can't do, and when he can return to training. That is what Antoine is focusing on at the moment.

"Antoine stays with us. Everyone will be together. We will do as we have always done with short-term injuries in hoping that the opinion of the surgeon is positive for Antoine and us.

"The specialist will give the verdict and Antoine will make the decision. We will respect that.

"The specialist knows who Antoine Dupont is, what competition he is currently playing. It is not an average subject."