Cardiff Blues player Andries Pretorius has been ruled out of the rest of the RBS 6 Nations campaign following a shoulder operation.
Pretorius was named in Wales 2013 RBS 6 Nations Championship squad but was yet to feature in a matchday 23.
The Welsh Rugby Union says that Pretorius has aggravated a shoulder injury whilst playing for the Blues against Edinburgh earlier this month and underwent reconstructive surgery on the injury on Friday. He is due to return to full training in May.
At this moment the WRU says he will not be replaced in the squad.