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.
Teenager In Custody On Crawley Attempted Murder Charge
Appeal Following Assault In Hastings
Road Closed As Armed Police Attend Incident In Worthing
Lewes District Council Placed In Planning Special Measures
‘Life-Changing’ Medication For Asthma Patients Now Available In Sussex
Arms Factory Demonstrator Disrupts Brighton & Hove Council Meeting
Patients Forced Into 'Pharmacy Bingo' - As Survey Says Medicine Shortages 'Beyond Critical'
Appeal for information After Man Dies In Hastings Collision
Wealden To Hold National Dementia Action Week This Month
Brighton Food Festival To Be Charged For Mud Bath