Midfielder Jess Fishlock says her side believe they are the best team in the W-League.
"We will go into next week full of confidence and have no doubt with this guy [Patrick Kisnorbo] our preparation will give us everything we need to win," she said.
The final on Sunday will be a chance for City to be the first team to not only have three championships but make it three in a row.
"I think the third championship on the line it will be something that gives us a little bit of extra motivation," Fishlock said.
"It will absolutely go down in history and it will be hard to beat but we have to view it as a game of football, if we view it as anything else then the game will go out the window."
The final is set to be a monumental occasion for both teams, with former teammates set to go head to head and both teams looking for that elusive third Championship trophy.
"Obviously we need to prepare against Sydney, who have had a great run this year but we have confidence going into the next game," Kisnorbo said.
"I think when this group came together it was creating something no other football club have.
"Even though Sydney have been in the competition longer, it doesn't mean anything, we have a great group of girls who are a joy to work with
"They are winners," he said.
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