Cristiano Ronaldo and his partner have announced that one of their newborn twins has died.
Writing on Instagram, they said they are "devastated" at the loss of their son and called it the "greatest pain that any parents can feel".
"It is with deepest sadness we have to announce that our baby boy has passed away," said the message on Sunday evening.
"It is the greatest pain that any parents can feel.
"Only the birth of our baby girl gives us the strength to live this moment with some hope and happiness."
The post, signed by Ronaldo and partner Georgina Rodriguez, continued:
"We would like to thank the doctors and nurses for all their expert care and support.
"We are all devastated at this loss and we kindly ask for privacy at this very difficult time.
"Our baby boy, you are our angel. We will always love you."
Fans of the Portuguese star, as well as fellow players such as David de Gea and Alex Telles, have replied with messages of support and condolence.
Manchester United's Instagram account posted:
"Your pain is our pain. Sending love and strength to you and the family at this time".
Ronaldo already has a four-year-old daughter with Ms Rodriguez, as well as three other children.
The Manchester United star played on Saturday against Norwich, scoring his second hat trick of the season and the 60th of his career.
Despite being the team's top scorer this season with 21 goals, there is uncertainty over the 37-year-old's future at the club ahead of the arrival of expected new manager Erik ten Hag.
Man Admits To Damaging Cars In Bognor
Two Men Arrested In Connection With Brighton Rape
Appeal Following Assault In Horsham Shop
Appeal After Arson At Gym In Burgess Hill
Two Men Sought In Connection With Brighton Rape
Councillors Support Baby Box Partnership With Charities
Brighton And Hove Bus Fare Cap Bid Foiled By Cost
New Medical Centre Scoping Exercise Agreed By Wealden Council
'Out Of This World' Ideas Put Forward For Future Of Brighton i360
New Fire Engines For West Sussex