The 31-year-old was disappointed with the performance as Ireland crashed to a 3-1 defeat at the hands of Croatia in their Euro 2012 opener.
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He said: "Of course we do [believe we get can the result]," he said. "We shouldn't be here if that wasn't the case. We believe we can go into every game and win.
"Listen, we know it's going to be a tough task. They are one of the best teams in the world, but there's no reason why we can't play against them and get something out of the game.
"We certainly know that we are up against it, but listen, we still have belief in this squad that we can play against anybody and get a result.
"We go into every game hoping to get three points, so that would be our main aim.
"It's very difficult as a player to go into a game thinking that you just want to get a point. It's very hard to do that as a player and we will certainly go in hoping to get three points.
"But it wouldn't be the end of the world if we did get a point."