Sean Lamont faces a battle to be fit for Scotland’s Six Nations campaign after suffering ligament damage.
The veteran utility back was stretchered off during Glasgow’s table-top Pro12 triumph over the Ospreys in Swansea at the weekend. There had been fears he could have sustained a fracture.
However, scans revealed only trauma to ligaments in his right ankle.
A Warriors spokesman said: “Sean will require further review with his consultant over the next few weeks, which will determine the time he will remain on the sidelines. Our medical team would like to thank their counterparts at the Ospreys for their assistance at the Liberty Stadium on the night.”
Lamont appeared in all three of Scotland’s recent autumn Test tussles with Japan, South Africa and Australia.
The Scots launch their Six Nations programme against Ireland in Dublin on Sunday February 2, before facing England in the Calcutta Cup showdown at Murrayfield six days later.
Lamont had been due to line up for Glasgow in Friday’s crucial Heineken Cup back-to-back encounters with Cardiff Blues. Team-mate Josh Strauss admitted his absence will be a setback.
The big South African breakaway forward said: “Sean is an exceptional leader such an experienced player for the team. He is a talisman and it is a blow to lose him.
“We all feel for him, though we do have options to fill that position and we just have to do the job. We have to focus on the guys who are playing this weekend.”
The first leg is at the Arms Park on Friday, while the return meeting will take place at Scotstoun the following weekend.