The report suggests that Juventus will not ask Ronaldo to leave, but they would not be opposed to his departure due to his high wages.
Real Madrid have also been linked, but the report claims the La Liga side’s president, Florentino Perez, is solely focussed on signing one of Kylian Mbappe or Erling Haaland.
Sporting Lisbon are also named as a possible suitor, but they would only be able to sign Ronaldo when he becomes a free agent in 2022.
Ronaldo has previously admitted that he would love to return to United one day.
“I love Manchester. Everyone knows that. Manchester is in my heart,” he said in 2014.
“The supporters are amazing and I wish I can come back one day.”