Ander Herrera could miss 'several' weeks of action with a muscle injury to his right leg, according to a report from Spain.
ABC, a Seville-based newspaper, claim the ex-Athletic Bilbao star is 'practically discarded' from United's squad for the first-leg of the Champions League last-16 tie against Sevilla in nine days' time.
However, Herrera posted a social media update on Sunday which suggests otherwise.
The Spaniard confirmed he missed the Premier League defeat at Newcastle United with a muscle injury but that it was not anything serious.
He also appeared to be undergoing treatment on his left leg in the post, which appears to contradict the Spanish newspaper.