Newcastle United defender Dan Burn faces four to six weeks on the sidelines after injuring his rib and lungs following a challenge with Sunderland's Nordi Mukiele during Sunday's 1-0 loss in the Premier League, his manager Eddie Howe said on Tuesday.
The England international was taken to hospital after sustaining the injury late in the first half and Howe said the 33-year-old was struggling to breathe.
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"It was a big blow for us because I think he's been excellent in recent weeks. It's a rib problem and an issue with his lungs so we wish him well and it will be around four to six weeks out," Howe told reporters ahead of Wednesday's League Cup quarterfinal against Fulham.
Newcastle, 12th in the English top flight, continue their league campaign at home to Chelsea on Saturday.