Solskjaer had looked set to stick with the same side that started in United’s win over Tottenham last time out, but he has been forced into a late change, with Shaw pulling out of the team due to illness, meaning Dalot starts. Brighton boss Chris Hughton, meanwhile, has made no alterations to the side that lost 1-0 to Liverpool last week.
BRIGHTON SUBS: Bruno, Beram Kayal, Florin Andone, Anthony Knockaert, Leon Balogun, Jason Steele, Viktor Gyokeres.
BRIGHTON (4-5-1): David Button; Martin Montoya, Shane Duffy, Lewis Dunk, Gaetan Bong; Solly March, Pascal Gross, Dale Stephens, Davy Propper, Jurgen Locadia; Glenn Murray.
MANCHESTER UNITED SUBS: Eric Bailly, Alexis Sanchez, Juan Mata, Romelu Lukaku, Andreas Pereira, Matteo Darmian, Sergio Romero.
MANCHESTER UNITED (4-2-3-1): David De Gea; Ashley Young, Phil Jones, Victor Lindelof, Diogo Dalot; Ander Herrera, Nemanja Matic; Jesse Lingard, Paul Pogba, Anthony Martial; Marcus Rashford.