Sheffield United have the worst playoff history in English football.
They've qualified for the playoffs 9 times, and not been successful in any of those attempts (including a relegation playoff, which saw them go down).
They've played in the final 4 times, and not scoring a single goal in them! The only time they found the back of the net was when one of the finals went to a penalty shootout. It went all the way down to the keepers, which Huddersfield’s scored and Sheff Utd's missed.
My uncle (a Blade) has been at them all. He's hoping that, as he can't go this year (he'll be at my wedding!) his absence will break the curse