Prior to the 1992 semi-finals, the only semi-final played under different rules to this was the rearranged 1989 semi-final between Liverpool and Nottingham Forest, for which it had been declared in advance that the game would be decided by extra time and penalties if necessary due to the Hillsborough Stadium disaster.
Before the 1992 semi-finals, only one semi-final was played under different rules, namely the rearranged 1989 semi-final between Liverpool and Nottingham Forest, which was determined beforehand to be settled by extra time and penalties due to the Hillsborough Stadium tragedy.