No matter the quality contained within your starting 11, occasionally they are simply unable to get the job done.
Despite the weeks of scouting, training and the team's best laid plans prior to a match, sometimes a change is needed to help spur your team toward victory.
Enter the "super sub".
One might reasonably assume that a squad's best players start the majority of their team's matches.
This is generally the case, but there are those certain players who might be able to make more of a meaningful impact as a late game substitution, rather than pacing themselves over a full 90 minutes.
Often, this type of player has a unique attribute or circumstance that helps make them a dynamic player off of the bench. Occasionally, a player is a former great who might just be a little past his prime, but still skilled enough and experienced enough to make his presence known when his team needs him most.
At other times, a national team might be so loaded with quality players that a man who would easily make most starting lineups, must ride his time on the bench, waiting for the precise moment to enter the game and possibly change the course of footballing history.
Let's take a look at a few of the 2010 World Cup's top super subs, just waiting for their opportunity to supply a game changing moment on the global stage.
Honorable mention must go to Arjen Robben, as his hamstring injury has thus far ruled him out of the lineup for the Netherlands. If he is healthy, he will likely start, but he may also find himself among the most dangerous potential substitutes in the World Cup, health permitting.