Opposition fans are very rarely in agreement during the course of 90 minutes, unless it is when they are united in the mocking of an official.
In a frenetic, early exchange, Newcastle captain Fabricio Coloccini charged down a shot from Jonjo Shelvey.
In a bid to make sure he was up with the play, referee Chris Foy was close to the action. Too close for him, as it turned out, as the rebound smashed him full in the face and sent him crashing to the ground.
Cheers rang round the ground, although there were possibly one or two who turned a little sheepish, as Foy was forced off to be replaced by fourth official Anthony Taylor.
Former England captain Gary Lineker had little sympathy for Foy, as he wrote on Twitter: "Chris Foy was replaced after being struck in the face by the ball. Blurred vision presumably...Nothing new there then."