Sky Italia’s Gianluca Di Marzio is reporting United are hopeful that they can secure the signing of the 33-year-old.
Chelsea have been in talks over a deal for Aubameyang but they have found it difficult to get the transfer over the line.
The Catalan club’s financial difficulties mean that they could allow Aubameyang to depart despite him having only joined the club in February.
During his time at Barcelona Aubameyang has scored 13 goals in 24 appearances.
United manager Erik ten Hag is eager to make further additions to his squad before the transfer deadline.