Barcelona remain the favourites to sign the young Holland international. The Catalan giants have already secured the services of his former team-mate Frenkie de Jong.
It is feared that a lack of Champions League football will also result in De Ligt snubbing a move to United.
But fans of the Old Trafford club have spotted something that has given them hope on social media, and many believe a transfer could be on the cards, reports the Mirror.
And interestingly De Ligt has given the image a 'like'.