[{"data":1,"prerenderedAt":4},["ShallowReactive",2],{"event-plain-introduction-of-the-qualifier-system-2001":3},"The 2001 All-Ireland Senior Football Championship marked the introduction of the 'qualifier system' or 'back door,' allowing teams to progress in the championship even after losing a provincial match. Galway became the first team to win the All-Ireland through this system, demonstrating its immediate impact.",1789333841756]