Juventus captain Giorgio Chiellini admits he was surprised by their swoop for Cristiano Ronaldo from Real Madrid this summer.
Chiellini confessed he was taken aback by the deal.
“Cristiano scored many, many, many times against us and he broke my dreams many times - in Cardiff, in Madrid, in Turin," the defender told BBC Sport.
“Before, the Champions League was a dream. Now it is a target because Cristiano is the best player in the world and we need him to make the last step.
“It's the personality of Cristiano. He has fantastic skills in the field but out of the field, his attitude - how he works, how he prepares for the match, how he lives every day of his life - can help us. The team has changed.
“We started in the first three months nearly in perfection but we know the most important period is from spring.
“I think that we are one of the four or five teams who are favourites - Barcelona, Manchester City, Real Madrid, Bayern Munich. But also PSG and Atletico can reach the victory and we are so far away from the key matches still."