Cavani, 33, was released by Paris Saint-Germain in June and is due in Manchester on Sunday ahead of agreeing a two-year contract worth about £200,000-a-week.
As long as he passes the medical there should be no problems finalising a deal because both parties are determined to make it happen.
Some fans are already voicing fears that the move will see the club plunge into a financial fiasco like the one that cost £66million in wages for flop Alexis Sanchez.
But sources insist the top brass view it more like the move that saw Ibrahimovic become a terrace idol.
Cavani's wages will be half the salary Sanchez was on — and he is said to be desperate to prove himself in England.