Manchester United are considering Watford's Ismaila Sarr as an alternative should they fail to make a breakthrough on Borussia Dortmund's Jadon Sancho.
Sarr, 22, has been on Liverpool's shortlist and is rated around £45m by the Championship side.
United have previously dismissed links with the Senegal international but he is understood to have come into their thinking with time running out in the summer transfer window.
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