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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Glamorgan sealed their first T20 Finals Day appearance for 13 years after beating Leicestershire by nine-wickets in Cardiff.
Tonight will stay mostly dry with clear spells, and it will be less humid than last night.
Jordan Ayew says he hopes Swansea can take their Carabao Cup victory into their clash with Crystal Palace.