Zinedine Zidane's condition is improving after treatment on his torn thigh muscle.
But the France star remains doubtful to face Uruguay.
He missed Friday's shock 1-0 defeat by Senegal because of the injury.
Zidane was able to go on a training run a day before attending a hospital in Seoul on Sunday for a recovery update.
But a French team official said the two-time World Footballer of the
Year would return there for treatment for as long as necessary.
Coach Roger Lemerre admitted he would still be "astonished" if the
29-year-old returns for the Uruguay match.
"It would surprise me if he was fit to play against Uruguay," Lemerre said. "Zidane is working hard to recover.
"There are just four days before the Uruguay game.
"He has suffered a very annoying injury as we do not know how long it will take to heal."
Meanwhile the rest of the French squad were still digesting the defeat to
the west African World Cup debutants Senegal.
"There's been no revolt yet - we're so disappointed that we're
still trying to understand what happened to us," said captain Marcel
Lemerre has given few clues about his plans to fill the creative
role normally filled by Zidane.
The 34-year-old Youri Djorkaeff had a disappointing match
against the Senegalese and Lemerre could be tempted to bring in
Parma midfielder Johan Micoud.
Zidane applying ice to his torn thigh muscle
Micoud had an excellent second half to the season in Italy and has the ammunition to supply potent strikers Thierry Henry and
The French players who did not play against Senegal took part in a low-key,
hour-long practice match against South Korean club Anyang Cheetahs.
Manchester United defender Mikael Silvestre scored the winning goal
with a header.