Lee Burge has been ruled out for around another month as he recovers from a heart issue - with Lee Johnson admitting the club is unsure whether it has been caused by Covid or by a side-effect of the vaccine.
Goalkeeper Burge was one of a number of Sunderland players who contracted Covid at the beginning of the month but, while the others have all returned to action, he has remained on the sidelines.
Johnson said last week that Burge was undergoing tests on a heart complaint, and today he went into more detail saying the 29-year-old faces several more weeks out of action although he is expected to make a full recovery.
