Tottenham Hotspur are one of the clubs looking to sign Fiorentina defender Nikola Milenkovic this summer.
The 23-year-old will be a free agent next season and has also been linked with West Ham United.
According to La Nazione (via Inside Futbol), Spurs have made a concrete enquiry for the centre-back, but their offer was considered unacceptable by the Italian club.
Tottenham could return with another proposal towards the end of this month.
It is no secret that Nuno Espirito Santo will have to improve his defensive options this summer, especially if Davinson Sanchez and Toby Alderweireld decide to move on.
The defence was a major concern for the Londoners last season, and a signing like Milenkovic could certainly help them improve.
The Serbian could be available for a reasonable price because of his contract situation and could prove to be a bargain for the Premier League club in the long run.
Milenkovic is only 24 and is yet to reach his peak as a defender. He is likely to improve further with game time and experience.
The Fiorentina ace is not the only Serie A defender Tottenham are looking at this summer.
They have also been heavily linked with a move for the Bologna star Takehiro Tomiyasu.