The general consensus around the A-League world is that the Victory are unbeatable but Cornthwaite knows that is not the case.
“Melbourne are a very good side and we’re going to have to be at the top of our game,” Cornthwaite said.
“Of course they’re beatable, they’ve lost this season. Obviously we haven’t beaten them (this season) but there has only been one goal in it on three occasions, so we’re quietly confident that we can do the job.”
The 23-year old understands that the Reds will have to be on top of their game defensively to be a chance on Saturday night but believes himself and his teammates can succeed.
“Danny Allsopp and Archie Thompson are excellent players and I think if we can stop them we can go a long way to winning it,” he added.
“They’re going to have their chances but as long as we limit their chances in front of goal we’ll have a good opportunity.
“Sasa (fellow defender Sasa Ognenovski) and I have both got one away from home this season so hopefully come Saturday one of us can get our head on the end of a cross, free kick or corner and score,” he said.