The Manchester United winger has drawn an offer from the Serie A giants but concerns from the Italians have left a potential move in the balance.
AC Milan has made a deadline day bid to sign Manchester United winger Nani, Goal UK reports.
The Serie A outfit has told Old Trafford officials that it would be willing to pay the Portuguese's 80,000-pound-a-week salary in full as part of a loan deal until the end of the season, with a view to a permanent signing in the summer.
United is willing to allow Nani's exit despite Wilfried Zaha's loan to Cardiff City, but a deal remains far from close, with Milan concerned over the player's fitness and the fact that he is ineligible to play in the Champions League this season.
"Milan are definitely interested but there are a fair few obstacles to overcome if we're going to see a deal get signed off," a source close to United told Goal.
Milan's city rival Inter was close to a deal with Nani earlier this week but terms couldn't be agreed .
Nani signed a new deal at Old Trafford after David Moyes convinced him not to leave in the summer transfer window but has failed to impress the new United boss.
The Portugal international has started just four Premier League games this season and has not featured since the defeat against Newcastle in early December, after which he suffered a hamstring injury in training that Moyes revealed would “keep him out for a while.”
Goal understands the player feels he has been harshly treated by his new manager and, prior to his latest fitness setback, had grown concerned at a lack of playing time, particularly in a World Cup year.