Rory Lamont will miss Scotland's final RBS Six Nations match against Italy after breaking a bone in his face in Saturday's 15-9 victory over England.
The 25-year-old full-back was carried off in the first half of the 15-9 Calcutta Cup triumph at Murrayfield after colliding with opposite number Iain Balshaw.
He was subsequently taken to Edinburgh Royal Infirmary for tests, which revealed a fracture that is expected to require surgery.
Lamont will therefore be ruled out of Saturday's encounter in Rome's Stadio Flaminio, which hooker Ross Ford is also likely to miss after suffering an ankle injury.
Both players are set to undergo further assessment on Monday.
Scotland team doctor James Robson said: "Rory has made good progress from his concussion, however, scans have revealed he does have a facial fracture, which will require further expert opinion and probable surgery."
Dr Robson added: "Ross sustained damage to his right ankle ligaments during the first half.
"He will require further assessment tomorrow but, at this stage, he is unlikely to be available for selection for this week."
A number of other Scotland players suffered the "usual bumps and bruises from a full-on Test match".
Nikki Walker (ankle), Hugo Southwell (jaw) and Paterson (arm) will also be assessed on Monday but they are expected to make the trip to Rome.