David Moyes has two large surprises up his sleeve in his teamsheet today.
Firstly, we're playing a 4-3-3. Interesting.
Secondly, Tom Cleverley starts in midfield.
Cleverley is in a midfield three with Fellaini and Carrick - it'll be interesting to see if they sit deep or if the Afroed one is going to have a license to get forward and make things difficult for City, where he can be a nuisance.
Meanwhile, Rio Ferdinand is fit to start in defence alongside Phil Jones, while Wayne Rooney, Juan Mata and Danny Welbeck comprise the front three.
Oh, and Adnan Januzaj isn't in the squad. For fu....
Manchester United starting lineup: David de Gea, Rafael, Phil Jones, Rio Ferdinand, Patrice Evra; Michael Carrick, Tom Cleverley, Marouane Fellaini; Juan Mata, Wayne Rooney, Danny Welbeck.
Subs: Anders Lindegaard, Alexander Büttner, Darren Fletcher, Shinji Kagawa, Ashley Young, Antonio Valencia, Javier Hernandez.
Manchester City starting lineup: Joe Hart, Pablo Zabaleta, Vincent Kompany, Martin Demichelis, Gael Clichy, Yaya Toure, Fernandinho, Samir Nasri, David Silva, Jesus Navas, Edin Dzeko.