Because of goal difference, even if we win both games left in the group we'll need Barca to either lose once or get two draws if we're to finish top. Not beyond the realms of possibility with their current form but I don't see them losing tonight. Gladbach aren't doing so well at the moment either. Of course, if we thrash Celtic and/or BMG while Barcelona get a win and a draw then we might also top the group.
Imagine beating Barcelona in the group. Better still, imaging them finishing second and drawing Leicester next round...