Marcos Rojo is set to return to first-team training this week in another boost for Manchester United.

The Argentine defender has been out of the squad since December with a mystery injury.

Rojo, 28, picked up the problem during the Champions League clash away at Valencia during the middle of the festive period.

The ex-Sporting Lisbon ace has been given the go-ahead to resume ball work over the next few days.

Interim boss Ole Gunnar Solskjaer will not rush Rojo back to first-team football after what happened during the Arsenal game at Old Trafford where he was thrown into the team immediately, but he will have his workouts intensified.

“Rojo will be back in training in the next 24 hours or so but a firm comeback date isn’t set,” sources from Old Trafford told The Sun.

“He is running and will now start ball work. He won’t be rushed back but it’s another boost for the squad.”

Chris Smalling and Captain Antonio Valencia have shaken of injuries and will be back soon. Despite not featuring during the Leicester City match, Smalling is up and running and could be in contention to return against Fulham on Saturday if called upon.

Rojo signed a new deal last year but has been ravaged by injuries over the last couple of seasons.

United takes on Fulham in the early kick-off on Saturday.