The youngster is scheduled to arrive at Manchester next month.
Amad Diallo will choose between no.19 and no.79 to be his jersey number at Man United, as per Norwegian journalist Fredrik Filtvedt.
He currently wears the no.79 at Atalanta, but the no.19 is a significant one at Old Trafford with the likes of Marcus Rashford, Dwight Yorke and Nicky Butt wearing it in the past.
The youngster is scheduled to arrive at Old Trafford next month and complete his move from the Italian club.
Diallo reportedly speaks some English but is working on improving his understanding of the language before he arrives in England.
The 18-year-old has only made 2 appearances for Atalanta this season, but has looked really promising whenever on the pitch for them.
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