That was probably the Hospital Cup or the Suffolk Senior Cup !
From the Bolton News:-
30 YEARS AGO:
Attempts by officials of the North American Soccer League to win fans across the Atlantic put them on collision course with FIFA, football’s world governing body.
The Americans were experimenting with a 35-yard “offside” line and three substitutes instead of two, prompting a threat of disciplinary action from FIFA president Joao Havelange.