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."