Cardiff - Wales No 8 Andy Powell has been ruled out of the Six Nations match away to Scotland at Murrayfield next Saturday.
The Wasps star suffered a shoulder injury during the 26-19 loss to England in Cardiff last Friday but Wales hope Powell will be available to face Italy later this month.
“Andy needs a period of rest now,” said Wales physiotherapist Mark Davies.
“But if all goes well he should be back in contention for the Italy game at the end of the month.”
Meanwhile wing Morgan Stoddart has been given additional time to prove his fitness ahead of the trip to Edinburgh after breaking a bone in his hand against England.
Stoddart, Wales's try-scorer at the Millennium Stadium, will be monitored daily to assess his progress. Cardiff wing Chris Czekaj has been called into the squad as cover.
“Morgan has been given a window of opportunity,” said Davies.
“If his symptoms settle down, we will clear him to play subject to a fitness review later in the week.”
Wales coach Warren Gatland is due to name his team to face Scotland on Tuesday with Ryan Jones in line to replace Powell. - Sapa-AFP