Rob Howley praised Wales' performance against Scotland and the "extradordinary" efforts of the pack. He said Ryan Jones is undergoing a 24-hour assessment for the shoulder injury which forced him off the pitch in yesterday's game.
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Low cloud will bring murky conditions with extensive hill fog.
The team, which is manned by volunteers, will operate out of Pontardawe Fire Station in partnership with Mid and West Wales Fire Service.
Dan Biggar has no doubt that Wales remain flrmly in the Six Nations title mix ahead of next Saturday's clash against Scotland.