The Serbia international is available from Juve this summer, with management eager to clear his wages off their books.
Transfer expert Fabrizio Romano is reporting: "United, in the last three days, Saturday, Sunday, Monday morning, have been offered the possibility to sign Dusan Vlahovic again.
"Vlahovic is out of Juventus project, Vlahovic is a player who can leave Juventus for a good proposal, and he’s been offered to Manchester United again. Something like, 'okay, if you can’t get a deal done for Sesko, Vlahovic is an opportunity'.
"He’s raised on the table, but Manchester United’s reply during all three days was, 'we are focused on Sesko, we want to go for Sesko, we are still in for Sesko'. So United are waiting for that story as a priority."
Romano added: "Then, if Sesko will decide to go to Newcastle… I told you several times, in that case, maybe United will consider different options for the new striker. But at the moment, (no) was the answer to Vlahovic."