The Brazilian right back, who moved from the Nou Camp to Turin a year ago, helped keep former team mate Neymar quiet in the quarter-final first leg on April 11 as Juventus won 3-0 at home.
Bearing that in mind, Enrique says the aim for Barcelona is five goals to counteract a Juve away goal. We are free from pressure.
"We have to be clever in how to choose when to attack when to defend".
Juve joined Atletico Madrid, Monaco and holders Real Madrid in the semi-final line-up after sealing a 3-0 aggregate victory over Barca with a goalless second-leg draw at Camp Nou on Wednesday. "We'll be looking to create opportunities to score and we're certain that we have what it takes to reach the next round".
"We have four days and we need to be optimistic", declared coach Massimiliano Allegri.
But they made another shocking start in Turin last week as Paulo Dybala scored twice to put Juventus firmly in control.
Enrique insisted Barca can't lose belief even if the goals don't come early against an experienced and resolute Juventus defence that has conceded just two in nine Champions League games this season.
Luis Enrique, by contrast, insisted "miracle" was not the word and that they need "only" three goals, although their objective is five.
He said fans shouldn't leave in the 80th minute because they could miss another historic comeback. "Juventus are the better team and if they can disconnect the front three as they managed to in the first leg, they have a great chance of winning the second leg".
"(On Wednesday) we have to compete at the level needed to go through.
"We have to play a ideal match". I think that's essential if you want to get the best out of yourself and improve.
Compared to the first leg Barca will have two more things in their favour: Sergio Busquets and Camp Nou.
Juventus defender Giorgio Chiellini won his latest battle with Suarez in the first leg after the Uruguayan famously bit the Italian at the 2014 World Cup.
That will certainly be a hard task against a Juventus defence that is widely considered as one of the best three in Europe.
"I am happy with what the lads are doing, but the key is not to maintain current form, instead we are aiming to improve it".