The Serbia international had long been on their radar and seemingly agreed personal terms months ago, but the Biancocelesti were unable to work out a transfer fee with his club.
According to these numerous reports, the move collapsed because Lazio sent an email to the wrong address.
Some had suggested the Bundesliga outfit intentionally gave an incorrect email to scupper the deal, but Eintracht Frankfurt assured Goal.com and others that it was Lazio who made a typo in the address.
It seems that the Aquile wrote ‘Franfurt’ rather than ‘Frankfurt’ in the email address.
“I don’t want to talk about it, there’s no point now,” Lazio director of sport Igli Tare told Goal.com.
“We wanted to sign Kostic, but that’s in the past now. We wish the best to the player and Eintracht Frankfurt.”
Meanwhile, angry Lazio fans furious over the relative lack of transfer activity this summer sent threatening and insulting messages to Tare’s son, Etienne, who plays for the club’s Primavera youth team.
He complained via Instagram that he had received anything from insults to death threats.
La Lazio ha sbagliato indirizzo email: così è saltato l’affare Kostic 🚫https://t.co/fGRL44pxyf
— Goal Italia (@GoalItalia) September 1, 2021