Barcelona will have to do it against a Bayern Munich side who have conceded fewer goals (three) in 15 away games in the Bundesliga this season than Barcelona will have to score in 90 minutes, just to take the game into extra-time. Of course, should they concede a goal, and with their defensive frailties, it’s almost inconceivable that they won’t, their failure to find the net in Germany means they will have to win by five.