About a year before I think, there had also been a bit of uproar over a last game of the season between Coventry and Bristol City ending 2-2.
They had kicked off 15 minutes after Sunderland who were also in the relegation mix, and by the end of the Sunderland match knew a point each would keep them up. Report said game effectively fizzled out at that stage with neither looking to go for it.
Allegations from Sunderland that Coventry put KO back deliberately, although they said due to crowd congestion etc.
Chairman of Coventry at the time was Jimmy Hill. Talking to a Sunderland fan about 5 years ago and he said the bitterness to Hill remained until his death.
Of course the Coventry v Bristol City match wasn’t subject to the scrutiny that mass tv coverage and the internet brings. Sunderland unlike another club up that way just raised a complaint but got on with life.