England fly-half Charlie Hodgson could need surgery on his problem knee.
The Sale player has been out of action since damaging his cartilage in the Sharks' Heineken Cup defeat to Leinster a fortnight ago.
A scan revealed that Hodgson had not suffered a recurrence of the knee injury which ended his World Cup hopes.
The injury has improved but he will see the specialist again next week and if he is not given the go-ahead to resume training, surgery will be considered.
The 23-year-old first injured his knee during England's Six Nations victory over Italy last March, and missed the World Cup,
Hodgson's latest injury setback is another blow for England coach Clive Woodward as he assesses his options for the opening Six Nations match against Italy on 15 February.
With Jonny Wilkinson ruled out with a shoulder injury, England are potentially short of cover at fly-half.