The Bianconeri official stated that the club will try to go as far as possible in the competition, and that they are considering a number of options to bolster the team's attack
The Serie A champions return to the prestigious Uefa competition after a two-year absence, and Marotta promised that Antonio Conte's men will try to go all the way to honour the club's history.
"We must try to win, we cannot just be content with just participating," he told Corriere dello Sport.
"Then, it will depend on many factors. Look at Chelsea, who seemed to be out and came out on top.
"We are looking to increase the size of the squad, which is necessary because we will play more matches next season.
"For that same reason, Conte and his team are trying to come up with training methods to use to prevent injuries."
Marotta then discussed Juventus' transfer plans, as Robin van Persie, Luis Suarez and Gonzalo Higuain have all been tipped to strengthen the Bianconeri's attack in the summer.
"Van Persie, Suarez and Higuain are all interesting players," he added. "We are not interested in Mario Balotelli.
"Sebastian Giovinco? We have always believed in him, but he still had to affirm himself as the important player he is today.
"He has matured and we will discuss that possibility with Parma."