Jadon Sancho.Borussia Dortmund winger Sancho is United's top priority this summer, but MEN Sport understands senior club officials at Old Trafford are unhappy with the German club's demands.
It is understood United have not agreed personal terms with Sancho's representatives or a fee with Dortmund, who are believed to be holding out for £108million.
United sources believe Dortmund's August 10 deadline to sign Sancho is 'meaningless' and described it as 'artificial' since the transfer window closes on October 5.
Now, reports in Italy say United have made a bid for another right winger, Chiesa, as a possible back-up option should the Sancho deal fall through.
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