The mother of Real Madrid star Cristiano Ronaldo's son is an American waitress, it has been reported.
The former Manchester United player became a father on June 17, two days after Portugal played the Ivory Coast in the World Cup, a newspaper report in Portugal said.
The Sunday Mirror claimed the footballer met the unnamed woman in a Los Angeles restaurant last year.
His youngest sister, Katia Aveiro, confirmed the birth to the Portuguese newspaper Diario de Noticias earlier this month.
Ms Aveiro said: "The news is true, but he doesn't want to talk about it. It's his personal life and when he wants to, he will talk."
The newspaper said Ronaldo, 25, had travelled to the Algarve immediately after his team was knocked out of the World Cup to be with his newborn son.
A statement previously posted on what is billed as Ronaldo's official Facebook page said: "It is with great joy and emotion that I inform I have recently become father to a baby boy.
"As agreed with the baby's mother, who prefers to have her identity kept confidential, my son will be under my exclusive guardianship.
"No further information will be provided on this subject and I request everyone to fully respect my right to privacy (and that of the child) at least on issues as personal as these are."