In English it means
Hi David Luiz,
My name is Ana Luz.
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.
Ana Luz Penna Reale