Nfl Official Ball
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 OFFICIAL Wilson ARENA FOOTBALL Pro Game Ball IRONMAN LEATHER David Baker NFL USA  US $90.00
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Introduction of NFL Rules
Are you an NFL fan?Do you know well of the NFL rules?
If you are interested in an un-familier game,you should first know the rules well,and then you will have much interesting in it.That is the truth,imagine,you don't know the game at all,how can you have the breathtaking feeling.Wear the NLF jerseys will be proud of your idol.
Everyone wondered about the difference between a quarterback and a cornerback, or what in the world that referee's gestures mean? How to Play Football gives you the rundown of how this popular American sport is played, so you can have just as much fun watching or playing yourself.
Introduction
Football may not officially be "America's favorite pastime," but it certainly has gained a huge following in this country over the years. One of the great things about football is that it can be just as enjoyable to play as it is to watch.Many designer NFL jerseys are of the symbol of fashion.If you've never had the chance to get a handle on how the game is played, here's a step-by-step guide to get you started down the great gridiron path.
Football Playing Tips
The field is 100 yards long, plus a 10-yard endzone.
11 players are on the field for each team; each position specializes in a certain aspect of offense/defense.
Teams score with touchdowns (6 points), field goals (3 points), safeties (2 points), and extra points/2-point conversions.
Penalties cost teams yardage.
An offensive team can lose the ball by turnovers such as interceptions and fumbles.
Play at home using two-hand touch or flag football if you don't have protective equipment.
Rules vary between NFL, NCAA, and arena football.
Step 1: The Object of the Game
In the game of American football, two teams compete to score points by moving a ball into the end zones of their opponents—either passing the ball from one player outside the end zone to another who's inside, running the ball from the playing field into the end zone, or sometimes kicking the ball through an end zone's goal posts. But more on scoring later.
Each team has 11 players on the field.
Smaller teams or leisure players may compete with eight or fewer participants.
The team with the ball at any given time is called the offense.
The other team, which tries to stop the offensive advance and "defend" its end zone, is called the defense.
The field:
Regulation football fields (minus the end zones) are 100 yards long. Each end zone contains a goal post and is 10 yards long. Yards are measured from each respective end zone's goal line, beginning with 1, until yard markers meet in the middle at the 50 yard line.
Though all yards are measured with "hash marks" or white lines on the sidelines, plus a line extending across the width of the field every five yards. Only every 10th yard line (10, 20, 30, etc.) is labeled with a numeral.
Play time:
The length of a football game is divided between two halves, each with two quarters. In professional football (NFL), along with college (NCAA) and arena football, each quarter in a game is 15 minutes long with a 12-minute half time between the second and third quarters. High school teams, however, play 12-minute quarters in a 48-minute game. Participants in amateur leagues or friendly games may shorten these periods.
When there are two minutes of play remaining before the end of each half, respectively, officials signal for a "two-minute warning." This stops the clock and serves as a free timeout for the teams.
An additional overtime play period is added if the teams are tied at the close of the fourth quarter.
To stop the clock, teams are allotted a number of timeouts (three per half in the NFL). In addition, some plays, such as running the ball out of bounds or scoring, can stop the clock (Arena Football has exceptions to this rule).
If you want to know NFL games well,there have much to learn,and the most important is gain the knowledge from eanch game.If you know well of the rules,it will be much more excited to watch the game.
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