No he is to young to retire.
Not yet...
There are three famous Ronaldos. Cristiano Ronaldo, Ronaldinho Gaúcho and Ronaldo Fenômeno (retired).
he's retired
No doubt Maradona.
Ronaldo Fenomeno from Brazil played for Corinthians in Brazil but sadly he retired at 2011. If you meant Christiano Ronaldo from Portugal he currently plays for Real Madrid in Spain.
He has now retired and is injury prone as well.
Ronaldo that has just retired from football was born there
Sachin Tendulkar When Dada retired, people found a Gautam Gambhir..!When Dravid retired, people found a Pujara...! When Laxman retired, people found a Virat Kohli...!!BUT....When Sachin retires..I Bet You, You go and search a player with Sachin's batting style, from north pole to south pole of the earth... OR from Mercury to Neptune or even from Pluto...!!You Will Never EVeR find another"SACHIN TENDULKAR"...!!
Ronaldo is out of shape to play at a 5 star team and Roberto Carlos have retired, and Dunga wanted to give youngsters a chance for the world cup.
Luis Figo, who recently retired, was extremely popular and was the Portuguese National Team's captain for many years. He has handed down the torch to Cristiano Ronaldo, it seems, who plays for Manchester United when he isn't playing for Portugal, and is acclaimed to be the best soccer player in the world.
Depending on which Ronaldo , you mean , there's a Brazilian Ronaldo now retired who played for a series of high profile football clubs including real Madrid , Barcelona and AC Milan , and the other Ronaldo is Portuguese , recently played for Manchester United and currently playing for Real Madrid