Barcelona have a huge task ahead of them at the Camp Nou Tuesday night as they attempt to overcome a 2-0 first-leg deficit against AC Milan.
The visitors will set out to defend their lead, but should they grab a critical away goal on the counter, Barcelona would have to hit back with four in order to keep their Champions League campaign alive.
Comebacks of similar magnitude are far from unheard of, and Milan in particular are no stranger to suffering shock defeats, but no team has ever overturned a two-goal first-leg deficit without the benefit of an away goal.
And with their confidence near a five-year low following three losses in five matches, the odds are stacked against the Blaugrana. But if they can find their rhythm early in the match and the get the Camp Nou faithful behind them, the tie is yet within their reach.
Let’s look at five critical areas that will determine how the second leg, and the tie, will play out.