Harry Maguire could be out of the Europa League final after he limped out of the 2-1 win at Aston Villa with a twisted ankle.
The Manchester United skipper was hurt in a collision with Anwar El Ghazi and will have scans on Monday.
The injury broke Maguire's run of playing every minute for United in the Premier League since joining from Leicester in the summer of 2019.
Maguire, 28, initially tried to play on but went down again on the pitch and was eventually replaced by Ivorian Eric Bailly in the 78th minute.