Should be two great games, but would have preferred the return to be at Parkhead.
The Bhoys played well against the Russians this week, but Arsenal are a whole other ball-game (excuse the pun!).
Being the perpetual underdog can have benefits, though - I hope!!
Celtic have had a good pre season beating Spurs away and hammering Sunderland I think. With all this and 2 tough games already in Europe, they could easily have it won before they go to London....But now having said that,they probably will fall flat on their faces...