Northampton Saints could face a fine for allowing George North to play for Wales in this weekend's match against Australia.
North has a clause in his Saints contract which allows him to play in all Wales Test matches, but Saturday's game falls outside the official window for autumn internationals.
Premiership Rugby will now investigate Northampton's decision to release him.
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Increasing cloud and rain overnight. Blustery and cold tomorrow.
Events are taking place in Cambridge, Norwich, Colchester, Southend and Lowestoft today, to mark Holocaust Memorial Day.
Cloud will increase through the day with rain arriving by dawn.