Manchester United are waiting on the fitness of Marcus Rashford ahead of their clash with Arsenal but Anthony Martial is set to return to the starting XI, sources have told ESPN FC.

Rashford set up two goals as United fought back from 2-0 down to earn a draw against Southampton on Saturday before being forced off in the 77th minute with an ankle injury.

The 21-year-old will be assessed by medical staff ahead of Arsenal's visit to Old Trafford on Wednesday before a decision is made about whether he is fit enough to feature.

Anthony Martial, who was left on the bench at St Mary's, is set to play from the start.

Jose Mourinho's decision to omit the France international from his team was a surprise given his good form, but sources have told ESPN FC that United are carefully managing the 22-year-old's workload while he nurses a muscle problem.

Martial, who has scored six goals in his last six league starts, was restricted to just 13 minutes against Southampton after replacing Rashford but should be fit enough to start against Arsenal.

Mourinho is dealing with a defensive injury crisis ahead of the meeting with Unai Emery's side. He was forced to pick midfielders Nemanja Matic and Scott McTominay in a back three against Southampton after Victor Lindelof, Eric Bailly and Chris Smalling were ruled out with injuries.

Lindelof will definitely miss the game against Arsenal, who have not lost since August, after travelling to Dubai in a bid to speed up his recovery from a thigh injury, while Ashley Young is suspended.

Mourinho is hoping either Smalling or Bailly can recover in time to start. Marcos Rojo, who was on the bench at St. Mary's, is another option to partner Phil Jones at the back, although the Argentina international has not played a single minute of football this season.