Emil Danchev, the 31-year-old's representative, has revealed there was interest from Spurs, who signed Berbatov from Bayer Leverkusen in 2006 before selling him to United for £19.9million profit two years later.
"We were in touch with Tottenham at the last moment," Danchev told reporters at a press conference with Berbatov held in Sofia.
"I cannot make promises on behalf of my client whoever they might be because my work principle is to create opportunities and options," he said.
"The choice belongs to the person who makes the decision. We discussed all three options. Nobody promised anybody anything.
"Fiorentina had a desire to get Dimitar to sign with them. We went as far as negotiating all conditions.
"But other than that, I've also spoken with three Turkish clubs, three Italian clubs, three English clubs, and three German clubs."