Both of these badges date from the early part of the 1977/78 season.
They were clearly produced before the match, as Chelsea actually won 1 – 0.
Macari, Coppell and Greenhoff did help the Red Devils to a 3 – 2 win over Newcastle though.
It is also possible that these badges have a hooligan element to them, and have nothing to do with the results of the game.
