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 M  |
| Man in Motion |
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A single player on the offense who is permitted to move parallel to the line of scimmage prior to the snap in an attempt to get open or confuse the defense. Only one man can be in motion at any time.
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| Man-in-Motion |
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A single player on the offense who is permitted to move prior to the snap; he may only run parallel to the line of scrimmage or away from it.
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| Midfield |
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The 50-yard line, which divides the length of the field in half.
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