Red Devils boss Jose Mourinho wants to add the Inter Milan winger to his squad this summer.
Starsport understand United began talks with the Serie A club at the end of last season.
A deal has been difficult to agree, with San Siro chiefs holding firm with their £45m valuation.
But Perisic, 28, has his heart set on a move to Old Trafford.
And Starsport reported last month that he is sulking in a bid to push the move through.
Inter manager Luciano Spalletti has claimed that negotiations between the two clubs have ceased.
He said: "There was a contact a few weeks ago, then the negotiation stopped, so for me it is closed.
"The more days that pass, the more difficult it becomes for us to find a replacement of his calibre.
"I'll strongly oppose his sale."
Inter are reportedly willing to lower their asking price in exchange for taking Anthony Martial on a season-long loan.
Perisic is currently on Inter’s pre-season tour of Singapore and played 84 minutes of the 2-0 win over Bayern Munich on Thursday.