Talks between United and Borussia Dortmund have reached a stalemate as neither club wants to compromise.
United are hoping to sign a central midfielder and centre-back to partner Harry Maguire this summer.
But the Express says those plans are on hold until the Sancho sage is resolved.
Dortmund have been wanting around £100m for the 20-year-old winger.
The Red Devils are hoping Sancho pushes Dortmund to sell him, although the England international has remained quiet for now.