Newcastle did not immediately respond to a request for comment.
England international Burn was taken to hospital after sustaining the injuries late in the first half, Newcastle manager Eddie Howe said after the match.
"He was struggling to breathe at half-time. I think it's a real problem," Howe had told reporters.
Newcastle, 12th in the league standings, host Fulham in a League Cup quarter-final on Wednesday, before continuing their English top-flight campaign at home against Chelsea on Saturday.