To choke’ is a phrase used to refer to athletes who are typically very good in their sports but fail to deliver in key situations. The immense pressure of these key moments tends to overwhelm them and they end up making an uncharacteristic mistake. Although this phrase is used most often in the context of American Football, it can apply to any sport when a normally reliable athlete fails. For example, this phrase is often used to describe Peyton Manning, who as the revered quarterback of the Indianapolis Colts has failed multiple times in big moments (for instance, when he threw an interception to lose Super Bowl 44 late in the game).