Sunderland are facing a nervous wait for news on Jordan Pickford's fitness, after the in-form goalkeeper injured his knee on Boxing Day.
The 22-year-old has been in eye-catching form despite the Black Cats' struggles this season, but David Moyes could now be dealt a major blow if he is ruled out.
Pickford completed the full 90 minutes of the 3-1 defeat at Manchester United, but was in some discomfort after the match and was sent for scans.
On Wednesday morning the club were still awaiting the results and have yet to confirm if he will miss the New Year's Eve trip to Burnley.