Ronaldo has thanked well-wishers after being discharged from hospital in Ibiza.
The former Brazil, Real Madrid and Inter star was admitted while on holiday after suffering from a bout of "strong flu".
The 41-year-old, a two-time winner of the Ballon d'Or, paid tribute to the hospital staff who treated him after initially playing down concerns he had a serious case of pneumonia.
In a statement posted on his official Twitter page, Ronaldo said: "Hi all! I'm home after a few days at the clinic. Thank you all for the affectionate comments and positive energy. Thanks to the team of doctors and nurses.