We can only assume he's been softly blubbing to himself since what happened happened on Tuesday evening, but David Luiz was no doubt cheered up a bit when the post came this morning.
For, amid the condolence letters from various members of the Germany squad and the usual bills from his local dog groomers (that's a hair joke, by the way), was a truly heart-warming hand-written letter from a young Brazil fan named Ana Luz.
Showing both support, encouragement and wisdom beyond her years, this is what little Ana Luz had to say:
"Hi David Luiz,
"My name is Analuz.
"I saw all of the Brazil games in the World Cup and I liked it a lot watching you play.
"I think that you don't need to be sad because you played well and did the best you could. 'You were a great captain.
"Life is like this, sometimes people lose and sometimes people win but people only need to be happy.
"David Luiz, you are my champion.
"Analuz Penna Reale."
To which Luiz replied:
"Many thanks Princess Ana Luz, loved your letter! And I thank all Brazilians for all the support!
"I'll never give up my dreams, and I will always strive to give back all that love I receive!
"God bless you all!"
And with that, David suddenly realised that life didn't seem quite so bleak after all.