Archie Waite made the sign prior to the start of the season and could be spotted in the stands every game throughout the year.
However, it was after Sunday's late draw with Brighton that Archie's dreams came true.
Phillips immediately headed to embrace fans who had stayed behind and he spotted the sign - emblazoned with 'Raphinha Make Me Smile'.
Archie and his sister Ruby, 14 - whose favourite player is Phillips - asked Phillips if he would finally show Raphinha the sign.
The star midfielder rushed over to show Raphinha the sign, as he sat reflecting in the goal mouth of Elland Road.
The sign brought a smile to the face of the winger and a picture captured the moment he tucked it under his arm to take home.
Archie's mum Rebecca, from Boroughbridge, said he was left in tears by the moment.
She said: "He has held it up all season, every single match at the front of the stands.
"Raphinha is his favourite player.
"It seemed like a goodbye and was very poignant.
"You can imagine Archie's response when Kalvin took the sign."
The moment went viral across social media following the match.
Raphinha is believed to have taken the sign back to his car according to fans.
"It means so much to the kids", Rebecca said.
"The players have such a close connection with the fans.
"It made it all worthwhile for Archie.
"He will have to make another sign now!"