Dortmund are reportedly holding out for £108MILLION for the 20-year-old England international. The German club have also set a deadline of August 10 for any deal to get done.
But the Manchester Evening News says United will NOT be working towards that deadline and hope to LOWER the transfer fee.
United chiefs thought they had sealed a £60m fee for the England winger, plus add-ons.
Dortmund chief Michael Zorc says the Germans do not want this dragging on over the whole of the transfer window, which opened on Monday July 27.