The Portugal international returned to Old Trafford from Juventus on a two-year deal over the summer but is thought to be planning to play until the age of 40.
According to The Sun, Ronaldo wants to spend the rest of his professional career with the Red Devils before taking a coaching position at the club.
The report claims that the 36-year-old is keen to oversee the progress of his son, Cristiano Jr, who has started training with Man United's youth side since his father's return to Manchester.
Ronaldo, who previously represented the English giants between 2003 and 2009, has scored four times in four appearances since returning to the club, including three goals in three Premier League outings.
The Portuguese's contract at Old Trafford can be extended for another year until June 2024. body check tags ::