Ronaldo kicked off his Juve career with victory at Chievo Verona.
He told DAZN: "I want to win the Champions League with Juventus, we will focus on that, with my teammates, but without obsession, step by step, and then we'll see: if this year, next year or after ... The goal for the club is to win the championship, the Coppa Italia and of course do our best in the Champions League."
Ronaldo also spoke about his son, Cristiano Jr.
"My son is very competitive. He's like me as a child. He does not like losing. He will become like me I'm 100% sure, I like to teach him some things, but in the end he will choose what to do and he will always have my support, but of course I would like him to become a footballer because I think he has that passion too.
"He has good technique, a good shot, I will not put pressure on him, but of course it would be a dream for me to see him one day become a footballer."