The PAOK fanbase has been protesting against the sale of Konstantelias, who joined the club's youth academy at the age of nine and made his professional debut in 2021. The protests began over the weekend, with thousands of fans gathering outside the stadium and ultras groups occupying the club's offices. The main demand is for Konstantelias to remain with the club, which he has been a part of since childhood.
Konstantelias has signed a long-term contract with Borussia Dortmund, which will keep him at the club until 2031. He has already gained experience playing abroad, having been loaned to KAS Eupen in Belgium for six months in 2022. The Greek midfielder has also played for the national team, earning 18 caps and scoring four goals in the last four games of the UEFA Europa League qualification phase.