Arsenal's bout with Wigan wasn't the only FA Cup final with giant-killing potential.
Hull City were trailing 2-1 to League One's Sheffield United at half-time at Wembley on Sunday, thanks to Nigel Clough's superior tactics and an emboldened display from the players.
"We were awful in the first half," said Hull manager Steve Bruce to The Guardian, adding that the Premier League side changed its approach in the second half.
The Blades fought tenaciously to try to become the first third-tier team in over a century to reach the FA Cup final, with star player Jamie Murphy scoring in the 90th minute. A few minutes later, however, David Meyler put the game out of reach to make the final score 5-3.
Hull will now play their first-ever FA Cup final against Arsenal, whom they have only beaten once since 1915.