He subsequently joined Getafe on loan and has since scored four goals and provided three assists in 13 games for the La Liga side.
Greenwood is under contract with United until 2025 with an option to extend for a year.
However, The Athletic claim that the club's intention is for the player to complete his rehabilitation on loan in Spain this season, before sealing a permanent move away.
Getafe president Angel Corres has already confirmed the Spanish side are "considering buying" Greenwood after being impressed by his performances.
It is claimed that Getafe inserted a clause into their loan agreement with United that could help them sign the player - or make a profit on him should he move elsewhere.
"They will only have to pay 80 per cent of any agreed price should they buy him outright. If United sell him to another club, Getafe will earn 20 per cent of the transfer fee," read the report.
"The Spanish club — who do not expect Greenwood to return to United — did not pay a loan fee for the player’s services and the 20 per cent stake was viewed as a way to secure value regardless of his next move."
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