American Football Rules Photo credit: Torsten Bolten (source) American Football is one of the biggest North American sports.
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The football passing route tree is a numbering system used by offensive players and coaches to identify which directions and patterns the wide receivers are going to run on passing plays.
Football players keep a record of these plays in a playbook.
A halfback (HB) is an offensive position in American football, whose duties involve lining up in the backfield  and carrying the ball on most rushing plays, i.e.
All about football including a glossary of terms, players, rules, and strategy of American style football.
If you've ever wondered about the basics of how to play (or at least follow) American-style football, you're not alone.
Start studying Flag Football Positions, Football Routes, Flag Football.
To a newcomer, American football can look overly complex.