barcelona 's easier nights in the champions league as luis enrique 's team brushed aside paris saint-germain 2-0 at the nou camp to reach the semi-finals .
the 5-1 aggregate victory never looked in doubt as the spanish side showed signs of returning to their brilliant best , with a combination of experienced stars and blossoming talent in their ranks .
here sportsmail looks at the five things we have learned from barca 's crushing victory over psg .