The 26-year-old has been in fine form for Les Canaris over the past year, scoring 20 goals as he helped them gain promotion back to Ligue 1 last term.
Fiorentina and Lazio are also rumoured to be interested in signing Djordjevic, who has scored six goals in the French top flight so far this season that has propelled Nantes up to fourth in the table.
While he claimed on Saturday that he was "99% sure" that he would stay with Nantes, his relationship with the club has been icy over the past few months after Djordjevic criticised club officials for fielding an ineligible player during their season-opener against Bastia.
Djordjevic also claimed at the weekend to Serbian press: "Either I will sign a contract extension with Nantes or I leave as a free agent. There is no third option."
Djordjevic has seven caps for Serbia to his name.