Taine Plumtree has been ruled out of the Wales' Guinness Six Nations clash with Ireland but Sam Costelow could feature in next week's game at the Aviva Stadium.
Blindside flanker Plumtree limped off in the 10th minute of the 26-23 defeat to Scotland in Cardiff because of a shoulder injury and has now been released from Steve Tandy's squad.
Costeloe lasted until the 55th minute of the Principality Stadium showdown due to ankle damage but is to remain with Wales to continue his rehabilitation, according to a statement released by the Welsh Rugby Union.
A trip to Dublin to face Ireland on 6 March is the team's next assignment and Costelow will be given every opportunity to prove his fitness following a superb performance against Scotland.
The 25-year-old Scarlets playmaker was not involved during the autumn but has fought his way back into the team, making his first appearance of the Six Nations last Saturday.
His return coincided with Wales' most encouraging display of the championship, even if their three-year wait for a win in the tournament continues.
