The former Borussia Dortmund star is likely to out for "three or four weeks", according to Sir Alex Ferguson.
"It's a knee injury similar to the one Ashley Young had but not as bad," revealed the boss. "I think playing on with the injury did not help the situation for him, even though he did well to play on with it. It's disappointing for him."
More positive news is that defenders Chris Smalling and Phil Jones continue to make progress in their bid to return to first-team action.
"Smalling is back training on the football side of things," added Sir Alex. "Phil Jones will hopefully start full training a week on Monday so things are getting better on that front.
"Certainly getting Smalling back is a big bonus for us."
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