Luiz says he was re-paying the loyalty of the supporter who has followed his journey since 2011.
Luiz was seen running over to the travelling Chelsea fans following the end of the club's EFL Cup third-round victory at the King Power Stadium, giving his shirt to a supporter and then taking a picture with him before he re-joined his teammates and celebrated the comeback win.
"Great comeback lads! But I really want to say thank you, for this little boy in the pic!" Luiz wrote on Instagram next to a photo of him giving the supporter his Chelsea shirt.
Great comeback lads! But I really want to say thank you, for this little boy in the pic! First time I saw him, he was running from the stadium until my hotel to say hello to me 5 years ago, and many others times until my home! He always was so respectful with me and many times he just want to say " congrats for the game and good night " , so last week after the game against Liverpool I was totally in shock, when I arrived at the hotel,I saw one guy running screaming my name and telling me to wait, and when I saw the ex little boy , now so big ,making the same action just to say to me, "we support u and the team, good night David" ! I just said tks God,to give me this job and opportunities to met people like this little boy,now a big guy! So, in Leicester the beautiful action was not my action to give him the shirt , the beautiful action was from him , to be there supporting us like always ! True Blue! Tks bro! God bless u and ur family #thebeautifulgame