Scotland are waiting for news on Kelly Brown's leg injury after the squad gathered at St Andrews to begin their Six Nations preparations in earnest.
The Saracens flanker was hurt during Sunday's Heineken Cup win over Benetton Treviso.
Team doctor James Robson said: "We are liaising closely with the Saracens medics and we await the outcome of two scans that Kelly has undergone today.
"At this juncture, Kelly remains part of our Six Nations squad."
Stand-off Ruaridh Jackson continues with his rehabilitation from a hamstring problem, while centre Joe Ansbro hopes to overcome back problems in time to face England at Murrayfield on 4 February.
Full-back Rory Lamont is being treated for deep bruising to his lower leg.
In addition to those concerns, props Alasdair Dickinson, who has a shoulder problem, and Ed Kalman, who has a calf injury, have been receiving treatment.
Meanwhile, lock Alastair Kellock is suffering from a respiratory tract infection and back-row forward David Denton has mild hamstring discomfort.
"It's great to be back in camp," said head coach Andy Robinson. "There's a real buzz among the players as we look forward to the England game."