Darren Fletcher admits Scotland have to raise their game against Spain, having disappointed in Prague.
Craig Levein's men slipped to a 1-0 defeat in the Czech Republic of Friday, putting a serious dent in their Euro 2012 qualifying hopes.
More than 6,000 Scots made the trip to see their troops in action last week, but were left frustrated after witnessing a 4-6-0 formation implemented away from home.
Fletcher acknowledges that Scotland now owe their supporters a performance, and he hopes they can raise their game against Spain on Tuesday.
The reigning world champions will pose a considerable threat to Levein's side in midweek, but a packed house at Hampden Park could be enough to help the hosts spring a surprise.
"It's important we go out and put in a good performance for the fans," the Manchester United midfielder said.
"Win, lose or draw, if they can see 100 per cent and see the Scotland team give their all, I think that's important.
"We have to forget what happened in the Czech Republic and use all of our energy and commitment in the Spain game."
Fletcher added: "It's important the fans stick with the team. We have fantastic supporters, just look at the numbers who came to Prague and went home bitterly disappointed.
"But now we have to put on a performance against Spain so they can see the lads are 100 per cent committed.
"We need to give them something to be proud of because if we are going to go forward as a team, it is important the fans stay with us and get behind us at all times.
"We're not going to go toe-to-toe with Spain. We know they will dominate possession and maybe outplay us but we have to look for opportunities to get forward.
"If we want a positive result then it's about being brave. No-one expects us to pass Spain off the pitch but when the chance comes to get at them we have to be brave enough to throw numbers forward."