Barca were outplayed in the reverse fixture of their quarter-final clash at Juventus Stadium last week as the Italian champions sailed to a comfortable three-goal victory in Turin.
The Spanish side will, however, be able to draw on their experience from the previous round when they produced the greatest comeback in the history of the competition, overturning a 4-0 first-leg loss against Paris Saint-German to win 6-5 on aggregate.
And, speaking ahead of tonight’s rematch against Juve, Barca coach Enrique said: "Bearing in mind the opponent could have chances and the goal can come at any moment, our objective is to score five [goals].
"We don't have anything to lose. We are free from pressure. Juventus have the semi-finals in their pocket and will have to decide whether to sit back or attack.
"We only have one option which is to attack, attack and attack again.
"I am sure that if we score the first goal, the Camp Nou will score the second and the third will come of its own accord."