Amad Diallo has been named among the Manchester United substitutes for the first time in Tuesday's FA Cup meeting with West Ham.
Diallo, 18, was signed subject to a medical and international clearance in October, before his move from Atalanta was ratified at the start of January.
The winger could reportedly cost United up to £37million despite playing only a handful of time for Atalanta prior to his move.
Diallo's adaptation period has involved a couple of games for United's under-23s, but it was clear on the evidence of those two outings that his ability is a level above.
The Ivorian scored three goals and set up another three across two matches against the second teams of Liverpool and Blackburn Rovers – the respective games ending 6-3 and 6-4 to United.
His next aim will be to make his debut against the Hammers, having been named on a strong bench that also includes Luke Shaw, Bruno Fernandes and Edinson Cavani, among others.
As for the United XI, there are rare starts for Donny van de Beek, Alex Telles and Dean Henderson, while Anthony Martial joins Marcus Rashford and Mason Greenwood in attack.
West Ham are without United loanee Jesse Lingard, who is ineligible.