The 1988 FA Cup Final was the culmination of season number what of the Football League?
1987–88 Football League The 1987–1988 season was the 89th completed season of The Football League.
1991 Football League play-offs The Football League play-offs for the 1990–91 season were held in May and June 1991, with the finals taking place at Wembley Stadium. The play-off semi-finals were also played over two legs and were contested by the teams who finished in 3rd, 4th, 5th and 6th place in the Football League Second Division, the 4th, 5th, 6th and 7th placed teams in the Football League Third Division and the 3rd, 4th, 5th and 6th place teams in the Football League Fourth Division table. The winners of the semi-finals progressed through to the finals, with the winner of these matches gaining promotion for the following season.