The Red Devils' first offer has fallen short of what the German club is willing to accept
Manchester United have had an opening bid of £67 million ($95m) rejected for Jadon Sancho.
The England international is one of Ole Gunnar Solskjaer’s top targets this summer after a deal failed to materialise for the 21-year-old last year due to a gap between the two sides over valuation.
Solskjaer is still keen to strengthen the right wing and discussions have been ongoing with Sancho’s camp and Borussia Dortmund over a potential transfer with the former Manchester City man keen on a move.