Warren Gatland says he feels referees are not giving Wales the decisions they deserve during the Autumn Internationals.
Wales take on Australia in the final game of the series tomorrow.
A defeat would leave them out of the top eight in the world rankings and facing the prospect of a difficult draw for the next World Cup.
"This weekend's game is going to be big on several different levels" says former Welsh international Rhys Williams.
"We need a win to boost confidence within Welsh rugby. It's been a been a disappointing autumn campaign, and no one feels it more than the players."
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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.