Referee Keith Styles collapsed in the 73rd minute after taking a blow to the head, and was carried off on a stretcher. Linesman Mr G. Martin took over the whistle. Terry Farley, a qualified referee form Newton Aycliffe was watching the game and came out of the crowd to run the line. Farley's intended game Spennymoor v Willington had been postponed, so he went to Roker Park instead to watch his friend Styles referee. He claimed not to be a Sunderland fan…