Reports last month stated the United right-back was wanted by both Inter Milan and Juventus.
But sources have told sportinastorm.com that the Red Devils still remain in the dark.
United are believed to be happy to facilitate a loan move until the end of the campaign, with an obligation to purchase.
They are also looking to recoup the majority of the £12.7m figure they paid to Torino for his services last year.
The Italy international defender is still respected in his homeland but United fear Serie A clubs are currently making them sweat.
Darmian has made just seven appearances this term although he had already fallen out of favour under former boss Louis van Gaal.
Ironically, the 26-year-old has started United’s last two games, against Arsenal and West Ham, with Jose Mourinho playing him at left-back due to injuries and concerns over Luke Shaw’s form.
Colchester will hand late fitness tests to Brennan Dickenson and Tom Lapslie before selecting their team to host League Two leaders Accrington.
Walsall manager Dean Keates could make changes to his starting line-up when relegation-threatened Bury visit the Banks's Stadium.
Notts County manager Kevin Nolan is expected to make changes against Coventry as he attempts to get his side's promotion challenge back on track.
Cheltenham expect to be without Carl Winchester as they look to get back to winning ways against struggling Morecambe.
Barnet boss Martin Allen could again look to freshen up his relegation-threatened side for the Sky Bet League Two visit of fellow strugglers Forest Green Rovers
Gillingham will be without Lee Martin for their mid-table League One clash at home to Doncaster on Saturday.
Brentford will be looking to keep their slim Sky Bet Championship play-off hopes alive when they face Ipswich on Saturday.