Ole Gunnar Solskjaer's 25-man A list includes new signings Alex Telles, Facundo Pellistri and Edinson Cavani, in addition to our other summer arrival Donny van de Beek.
Homegrown youngsters such as Mason Greenwood, Teden Mengi and Brandon Williams can remain on the B list, which could be added to up to 24 hours before any particular fixture.
UEFA A-LIST SQUAD
Goalkeepers: David De Gea, Dean Henderson, Lee Grant.
Defenders: Eric Bailly, Tim Fosu-Mensah, Victor Lindelof, Harry Maguire, Luke Shaw, Alex Telles, Axel Tuanzebe, Aaron Wan-Bissaka.
Midfielders: Bruno Fernandes, Fred, Daniel James, Jesse Lingard, Juan Mata, Nemanja Matic, Scott McTominay, Facundo Pellistri, Paul Pogba, Donny van de Beek.