Defender Daniel Ballard is set to miss Northern Ireland’s World Cup qualifiers against Luxembourg and Germany next month through injury.
The 25-year-old was forced off during the first half of Sunderland’s 2-0 defeat against Burnley at Turf Moor on Saturday.
Speaking after the Black Cats’ Carabao Cup loss against Huddersfield on Tuesday, their boss Regis Le Bris said while the concern was not “long-term”, Ballard does face a spell on the sidelines.
“It’s not too serious so we expect him to be out for two to three weeks,” he told the club’s website.
Northern Ireland are away to Luxembourg on 4 September and face Germany in Cologne three days later.
Michael O’Neill is already without first-choice goalkeeper Pierce Charles, who pulled out of the squad after injuring his shoulder when in action for Sheffield Wednesday.
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