Despite claiming he was down to just one fit centre back yesterday, Jose Mourinho has named three in his Manchester United starting XI.
Chris Smalling, Eric Bailly and Marcos Rojo all start, with Diogo Dalot and Matteo Darmian as wingbacks.
Paul Pogba is dropped and Romelu Lukaku is also on the bench despite breaking his scoring duck against Southampton on Saturday.
It looks like Marcus Rashford will lead United’s attack.
Aaron Ramsey captains Arsenal tonight with Alexandre Lacazette only deemed fit enough for the bench.
Pierre-Emerick Aubameyang leads the line, fresh off his brace in Sunday's north London derby.
Manchester United team to face Arsenal: De Gea, Dalot, Bailly, Smalling, Rojo, Darmian, Herrera, Matic, Lingard, Rashford, Martial
Subs: Subs: Pogba, Mata, Lukaku, Romero, Valencia, Fellaini, McTominay
Arsenal team to face Manchester United: Leno, Papastathopoulos, Mustafi, Holding, Bellerin, Torreira, Guendouzi, Kolasinac, Ramsey, Iwobi, Aubameyang
Subs: Cech, Elneny, Mkhitaryan, Lacazette, Lichtsteiner, Maitland-Niles, Nketiah
