The hosts go into the game 3-0 down from the first leg in Turin and in need of a ‘second miracle’ if they are to remain in the competition.
Enrique fully expects the Italian champions to score at Camp Nou and believes his side must go for goals.
"If I have to remember the PSG match, it was difficult because we needed to be calm and with a good rhythm with the ball but also frenetic without the ball," he said at his pre-match press conference.
"In addition, we needed four goals - this time only three - but bearing in mind that the opponent will score, our goal will be to get five."
Enrique also conceded that Juventus will be favorites to progress but warned the visitors his men will go for the jugular.
"We have nothing to lose, the opponent already have the semi-finals practically in their pocket and so will have to decide if they want to attack or defend themselves," he said.
"We have to attack, attack, attack and attack."