Wales centre Scott Williams is set to miss the remainder of the RBS 6 Nations squad because of a shoulder injury.
The 23-year-old has is expected to undergo surgery this week and could be out of action for up to three months.
A statement from the Welsh Rugby Union read: "Centre Scott Williams has been released from Wales' 2014 RBS 6 Nations squad due to injury.
"Williams injured his right shoulder in Saturday's defeat to Ireland and will require surgical intervention."
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