Despite contributing 14 goals and 14 assists to help Barcelona win the league and Spanish Super Cup double, the Blaugrana decided not to exercise his €30 million buy option.
Rashford has impressed during his time in Spain and is well-liked at the club, but Barcelona have baulked at the combination of the transfer fee and the England international’s high wage demands.
Both players share the same position, making Rashford surplus to requirements, considering star player Raphinha also operates on the left wing.
United are expected to listen to offers for Rashford this summer as they continue their squad rebuild under Michael Carrick.
It remains to be seen whether Barcelona could revisit a loan proposal later in the window, but for now, the club have drawn a line under their interest in the forward.