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Published on November 29, 2009 10:07 PM by dbo.
There must be seven players on the line of scrimmage — 5 lineman and 2 ends — at the snap of the ball. Failure to comply results in an illegal procedure — no end penalty. This penalty can also be caused by a player with an ineligible number taking an end position and not reporting to the referee prior to the play as found in Article 3 of Section 5 of the Scrimmage rule.
Illegal procedure in general is the rule that covers pre-snap violations by the offence. Illegal procedure by itself usually means an offensive lineman moved prior to the snap of the ball.
This is for all the enquiries over this rule.