Scotland's Al Kellock out for four months following arm surgery
Glasgow Warriors lock Al Kellock will miss Scotland's entire Six Nations campaign after being ruled out for up to four months following arm surgery.
The 32-year-old former captain, who has 56 caps, expressed his disappointment on his Twitter account.
"Gutted about the arm but part of the job. I've had a good run for the last few years - back soon enough," he said.
Glasgow head coach Gregor Townsend said Kellock would be disappointed to miss the 1872 Cup against Edinburgh.
Townsend added: "He has played a prominent role in these games over the last few season and thrives against Edinburgh.
"We wish him well in his recovery and he still has a big role to play at the club as he works his way back to full fitness."
Meanwhile, X-rays have shown that Glasgow centre Mark Bennett has a fractured toe but will not require surgery.
Warriors say Bennett, who suffered the injury on Scotland Sevens duty, will be out for "several weeks".