Football officials... they're the men on the field we all love to hate and complain about. But without these keepers of the rules, a football game could not progress with any sort of structure or sanity.

Officials play a very important role in the game, from keeping things moving along to making sure the athletes don't unnecessarily hurt each other. Officials are responsible for monitoring the game clock and play clock, enforcing the rules of play, and recording all rule infractions.

You often hear them referred to by the general term of referee, but there is actually only one referee on the field during a game. Each official (usually seven in college and NFL games) has his own title and assigned responsibilities. Read more...

And if you've ever wondered what it takes to become an NFL official, we have all the details.

Photo: Eliot J. Schechter / Getty Images