The newly-crowned German champions are 2-0 up from the first leg played at the Allianz Arena in Munich last week.
"We'll approach the game as we did last Tuesday's, so of course we're going to try to win," he told reporters on Tuesday.
"Juventus have shown in the Champions League and Serie A that they are an absolutely top team. They are going to try to make the impossible possible.
"We'll keep faith with our system and play the way we've always played this season. Of course we want to prevent Juventus from getting their game going."
The second leg will be held in Turin on Wednesday.