Scott McTominay could miss up to a month after suffering ligament injury in his knee against Newcastle.

"I wouldn't expect him to be back within a few weeks," said Ole Gunnar Solskjaer. "I don't know if it's three or four weeks ... We've just got to find a way through it."

United are currently 5th on the table ahead of their matchup against Arsenal on New Year's Day.

Alex Oxlade-Chamberlain will be out for an uncertain period of time after damaging a ligament in his ankle against Flamengo in the Club World Cup final.

“You have three ligaments on the outside of the ankle, and Alex has one of them damaged. Now we will have to see how quickly we can fix it. It can take a while or be quite quick, but clearly he has no chance for Boxing Day and no chance for the rest of this year," said Jurgen Klopp.

Oxlade-Chamberlain suffered a knee injury in April 2018 that kept him out until earlier this season.

Ole Gunnar Solskjaer reiterated that Paul Pogba was not for sale during the winter window.

“He’s not getting sold in January,” said Solskjaer.

The United manager then dodged questions over Pogba's ankle.

“It was something that really needed sorting but I don’t think I should give you all the medical information,” Solskjær said. “But he’s now feeling good and getting better. It’s worked [his rehabilitation].”

Kieran Tierney will miss the next 3 months for Arsenal after dislocating his shoulder last Monday against West Ham.

Tierney will have surgery next week.

Tierney has started 3 matches for Arsenal since moving from Celtic last summer.

Eden Hazard will not need surgery on his injured ankle, according to his brother.

Hazard suffered the injury last month against PSG.

"He won't have an operation - he'll be back in two or three weeks. He's doing fine, but he's not going to take any risks with his recovery. It's just a question of time and he'll come back stronger. He's improving and he'll be back fit in the new year," said Kylian Hazard.

Eden Hazard will miss El Clasico with a fracture in his right ankle. 

Hazard is expected to miss at least the next two weeks.

Marcelo and Gareth Bale are also in doubt to miss the match due to injury.