Stopping Ronaldo a big step towards victory’
Ronaldo, who won the competition in four of the last five seasons with Real Madrid, joined Juve for 100m euros from Real in July.
The Portuguese striker has also scored a record 120 Champions League goals, 19 clear of his nearest rival, Lionel Messi.
Marcelino insisted that his side are not frightened of Ronaldo, despite knowing his importance to Juventus.
“We have often faced Ronaldo, and often we have faced his presence,” the 53-year-old said on Tuesday.