Nathan Hines has been ruled out of Scotland's RBS Six Nations fixture against France on Saturday.
Murray also misses Paris trip
Nathan Hines has been ruled out of Scotland's RBS Six Nations fixture in France on Saturday.
The Perpignan lock looks set to miss the bulk of the tournament after being told his knee injury requires surgery.
Hines was scheduled to undergo an exploratory operation on Tuesday and team doctor James Robson estimates he will be sidelined for between two and five weeks.
Euan Murray will also miss the Paris trip with the same injury that prevented him playing in the opening weekend defeat to Wales.
Murray is making "slow but steady" progress as the Northampton Saints medical staff treat his rib problem, Robson is hopeful the prop will be available to return against Italy on February 28.
Delayed
Scotland head coach Frank Hadden has delayed naming his starting line-up to take on France to allow Geoff Cross and Simon Webster a further 24 hours to recover from concussion.
Both remain doubtful but the 10 other players who picked up injuries during the 26-13 loss to Wales at Murrayfield all took part in Tuesday's full training session.
A decision on prop Cross and winger Webster will be taken on Wednesday morning ahead of Hadden's team announcement.
The pair had initially made good progress following their head knocks but failed to satisfy Robson of their full recovery during a non-contact exercise session on Tuesday morning.
Painful
Cross is also battling injuries to both knees, which he strained when he fell unconscious after tackling Lee Byrne on his painful debut.
"Because he was knocked out almost instantaneously, he damaged both knees as he fell to the ground," Robson said. "It was his knees that were causing him problems this morning in terms of being mobile."
Robson will observe their reaction to another session on exercise bikes on Wednesday and, if their recovery has improved, they will then have to be passed fit by a neurologist in order to be named in Hadden's 22.
Lock Jim Hamilton, the player causing most concern apart from Webster and Cross, brushed off an eye injury to take a full part in training.
Chris Cusiter (knee), Mike Blair (dead leg) and Jason White (calf) were among the others to make full recoveries.
