Manchester United manager Ole Gunnar Solskjaer says he is not sure when - or if - Harry Maguire will be available for upcoming fixtures.
Maguire limped off with what appeared to be an ankle problem during United's comeback win over Aston Villa on Sunday in the Premier League.
He had attempted to play on before eventually departing the fray.
With a busy fixture schedule coming up - including two games this week against Leicester on Tuesday and Liverpool on Thursday - Solskjaer appeared resigned to being without his captain in the coming weeks.
Their Europa League final is also on the horizon at the end of the month, it will be an anxious wait to see if the England international recovers sufficiently.
In response to queries on Maguire's welfare after the game, the Norweigan said: "Might be a few weeks, might be a few days."
In the lead-up to Sunday's encounter, Solskjaer said referred to Maguire's importance and durability during the campaign.
“Harry Maguire, he’s played every minute for us in the Premier League since he came. I don’t think that’s possible now [because of fixture congestion].
"That’s another stat that he could have been very proud of but I can’t really see that happening now.”
The Villa game - the first of three in five days - saw United fall behind early on before they responded in positive fashion after the break.
A converted penalty from Bruno Fernandes was followed by a Mason Greenwood effort shortly after before Edinson Cavani added gloss to the scoreline in the closing stages.
Bertrand Traore had given the hosts a first-half lead.
Solskjaer hailed his players' efforts in clawing their way in front in challenging circumstances.
The result also prevented Manchester City from being crowned champions.
"Massive result, massive result, because it takes a little bit of the pressure away," Solskjaer said.
"We can go into the next one a little bit confident, go and enjoy it,
"We know it's going to be hard and it's going to be a physical test these next three days but we're going to make the most of it."