Scottish Football League 1986-87
The previous season relegation from the Premier Division was suspended and the top two teams from Division One were promoted in order to increase the top level to 12 clubs. Teams still played each other four times, for a total of 44 league games. This schedule proved too demanding when cup and European competitions were taken into account and at the end of the 1987-88 season, the Premier Division was again reduced to 10 teams. Almost every team now wore sponsored shirts.