https://youtube.com/watch?v=WwFD0dJfoBY

Let's set the stage.  It's the final day of the season in England's League One, which is two divisions below the Premier League.  2nd place Doncaster is on the road at 3rd place Brentford.  The top two finishers in League One earn automatic promotion to the Championship while 3rd place must try to earn promotion through a 4 team playoff.  Doncaster needed only a draw to clinch promotion while Brentford needed a victory.

In the final minute of the game, with the score 0-0, Brentford earns a penalty kick after a handball in the box.  Marcello Trotta steps up to take the penalty kick and blasts his shot off the crossbar.  With almost every outfield player near the penalty area, Doncaster clears the ball to midfield where a 2 on 1 break develops and James Coppinger pokes the game winner home at the opposite end of the ground.  Doncaster wins the game 1-0 and wins promotion as League One champions while Brentford stays in 3rd place on the table.

Considering the stakes involved and the once-in-a-lifetime sequence of events, it's one of the most improbable endings to a soccer game you may ever see, or any sporting event for that matter.