Hot air clouds Black Cats' progress

Just as the referees' apparent lack of fitness stole the headlines in the aftermath of Sunderland's last game, their latest encounter – and encouraging performance – was lost amongst the furore surrounding that red balloon.

Journalists, match officials, and former referees were left to scramble through the rule book to work out whether the goal should have been chalked off, as confusion reigned at the Stadium of Light on Saturday.