While many have labelled tonight's second leg as mission impossible, Aloisi says Aurelio Vidmar's men can still triumph.

A 3-0 deficit is a big challenge to overturn but Aloisi told au.fourfourtwo.com today: "I believe they can do it and people here in Adelaide believe it as well.

"I don't think Gamba Osaka looked particularly focused at training yesterday and it was a bit sloppy at times. I think they believe it's won."

Aloisi joked that he'd heard the visitors were already asking where they could buy some celebratory champagne.

He said: "I honestly believe that if they haven't scored in 90 minutes then Adelaide will do it.

"I think we can get the three goals and take the tie into extra-time. The crowd will obviously be a factor but I'm sure the players will want to do this for themselves as much as anything.

"Hopefully Adelaide can get that early goal and really push on from there. I think Cristiano is due a goal and I'm expecting a big game from Travis Dodd as well."

Adelaide are without several key players but Aloisi believes there is still enough quality for the home side to prevail.

He said: "I think young Mark Birighitti is going to be a real class keeper and he's very mature for a 17-year-old. He has no fear.

"I'm really looking forward to the game and hopefully it ends the way we all want it to."