The Denmark International has been made available by United, with AC Milan also in contact.
However, the Serie A champions are now in conversation after he lost Romelu Lukaku to a serious injury last week.
Transfer expert Fabrizio Romano reports: “Napoli has made new contact with Man United for Rasmus Hojlund Deal today.
“The camp of Hojlund also in conversations with Napoli as a player, while it also wants guarantees to stay in the club in the future, not a simple loan. Negotiations are going on.”