Celtic can't win a game in Europe because Johnny Foreigner doesn't know that Celtic are supposed to get all contentious decisions towards the end of a tight match. Whay can't they take Scottish refs with them. They know what to do. All non-Old Firm fans will know what I mean.
Seriously though, 60,000 fans shouting as one voice must influence a single individual out there. When Celtic don't have that working in their favour it's more difficult to win (plus, of course, the opposition has the same effect working for them).
