A bus journey is among the suspected causes of Sunderland’s Covid-19 outbreak, with an external employee on board one of those who have tested positive.
The League One club have seen five of their senior set-up return positive tests this week, forcing the closure of the training ground and postponement of their next three fixtures.
But sources have told Sportsmail that a recent coach trip is the likely source of the spread. There are also questions being asked as to why an external employee on the bus came into close contact with Sunderland's players.