As the 2012 U.S. Open prepares to get under way in a matter of hours, the most exciting events cataloged during the next two weeks will involve upsets.
This means that a player, not expected to win a match, plays well beyond his or her usual level to win in two or three sets—defeating an opponent ranked higher.
The higher the seed upset, the more astounding the result.
Fans around the world love cheering for the underdog—seeing the mighty fall. It is just human nature to long to see the unexpected.
Upsets are part of the history of the U.S. Open. Following are the 25 biggest surprise wins in the Open Era of tennis.