It is in an open letter that one of the world's greatest football players of all time tells of the grief.

Cristiano Ronaldo and partner Georgina Rodríguez's twins were born, one of the children died.

It

is with the greatest sadness that we must announce that our boy has passed away.

You are our angel, our little boy ",

the couple via Ronaldo's Instagram.

"Only the birth of our daughter gives us the strength to cope with this moment with a little hope and joy,

" they also write.

Ronaldo already has four children.

Manchester United are chasing a Champions League place in the league and tomorrow a big meeting with Liverpool awaits.

Whether Ronaldo will come into play is still unclear.