7) Birmingham City shock Arsenal at Wembley
Arsenal’s run of six years without a trophy looked certain to come to an end when they took on Premier League stragglers Birmingham in 2011, even after they went a goal behind through a Nikola Zigic header. Robin van Persie levelled the scores, and with the game looked to be heading towards extra time. That was until a defensive slip allowed Obafemi Martins to net a dramatic late winner.