Even with Robin van Persie sidelined with a thigh injury, David Moyes has shown that, as long as he has enough strikers, he will play 4-4-2.
With just Danny Welbeck and Javier Hernandez available against Stoke City last week, the United manager switched to 4-5-1. But with Wayne Rooney back to face West Ham United on Saturday, it was back to 4-4-2.
And it's likely to stay that way for the trip to Hull City on Boxing Day with Rooney and Welbeck paired together up front.
Moyes does have injury problems. He told the Manchester Evening News Marouane Fellaini could be out for up to six weeks after undergoing surgery on his wrist injury, while the United manager is hoping for Christmas miracles regarding the fitness of Michael Carrick and Van Persie:
(Fellaini) had his operation on Saturday morning.
We just couldn't get him recovered from his back. We thought it would be okay after 10 days but it wasn't getting any better so we made a quick decision to get the wrist done.
We think it will be six weeks but there is a chance it could be shorter than that.
This is the time when miracles happen. Let us hope there is one for Robin van Persie and Michael Carrick.
Robin is progressing, he’s coming on and he is feeling quite good. He had a similar injury at Arsenal on his thigh so it is something we have to be sure about. It wouldn’t be much good if it got repeated so we will try to take it steady.
Obviously the medical team are controlling him but we speak to Robin as well about how he feels and what he feels he needs to do. We’re doing everything we can to make sure he’s well looked after and well treated.
With Fellaini and Carrick missing, Phil Jones is likely to continue in midfield alongside either Ryan Giggs or Tom Cleverley.
Moyes doesn't often pick a United team without Antonio Valencia on the right, while Adnan Januzaj, Shinji Kagawa and Ashley Young, who's scored in both of his last two games, will battle it out for a place on the left.
The back four of Rafael, Patrice Evra, Jonny Evans and Chris Smalling could be unchanged from the win over West Ham unless Rio Ferdinand or Nemanja Vidic are fit enough to return.
Projected Lineup vs. Hull City: David de Gea; Rafael, Patrice Evra, Jonny Evans, Chris Smalling; Phil Jones, Tom Cleverley, Antonio Valencia, Shinji Kagawa; Wayne Rooney, Danny Welbeck.