Marcelo has also suggested that Neymar will one day inherit a crown now owned by Ronaldo.
"What I can guarantee is a great ambition of all of us players and technical team", Ronaldo told the press at a reception held by president Marcelo Rebelo De Sousa.
The Portuguese worldwide helped Real Madrid to four UCL titles in the last five years, and the EURO16 win with Portugal has made him one of the best players the game has ever seen. "The first match, the group stage will be extremely hard but I think that with these players we need to think big and I am confident that we will give our best".
Ronaldo's contract at the Bernabeu commits him to the reigning European champions until June 2021.
Ronaldo's own future has been the subject of much discussion in recent weeks, with reports from Portugal claiming he had made an "irreversible decision" to leave Madrid this summer.
Ronaldo has remained tight-lipped regarding his future since casting doubt over his future at Madrid after the Champions League final against Liverpool on May 26 when he spoke about his time at the club in the past tense.
XFL Appoints Commissioner And CEO, Vince McMahon Comments
Before joining the NCAA, he spent four years as athletic director of West Virginia, orchestrating the school's move to the Big 12. The XFL plans to have eight league-owned teams, 40-man rosters and a 10-week regular season during the NFL's offseason.
The 25-year-old broke a lot of records on his way to tally a staggering 44 goals, and his feat has drawn questions - as well as comparisons - as to whether he can maintain the level of consistency of the Real Madrid and Barcelona stars.
The Euro 2016 winners begin their World Cup campaign against neighbours Spain on June 15.
Cristiano Ronaldo's son took to the Estadio da Luz pitch on Thursday following Portugal's 3-0 friendly win over Algeria to show off his football skills. Let us know in the comments section below.
"I've never understood the Ballon d'Or criteria", he said.
"I think we must think match by match".