Midfielder Lee McCulloch has told Scotland supporters to turn Hampden Park into a fortress during their Euro 2012 campaign.
Craig Levein's team opened their Group I campaign with a 0-0 stalemate in Lithuania on Friday and now face Liechtenstein on home soil on Tuesday.
Victory is needed to set the tone for the remainder of qualifying as Levein looks to guide the nation to their first major international tournament since 1998.
With World Cup holders Spain and a highly-rated Czech Republic in the same pool, the Scots will be targeting a play-off spot to make it to Ukraine and Poland.
McCulloch has urged the Tartan Army to turn up in force for the clash against the Alpine nation, saying a boisterous following could make all the difference in their bid.
The Rangers man told the Daily Record: "I'd love to see a full house at Hampden.
"Players respond to the fans and it makes it harder for the visiting side when there's a capacity crowd. Hampden is going to be vital in our group for Euro 2012.
"The games there are going to have a bearing on who goes to Poland and the Ukraine.
"We have to think of them as must-win matches but, having said that, I might let you give me a draw in the home match with Spain.
"An early goal would be great. The pitch is really good and hopefully we can pass the ball really well."