Interference - Ineligible Downfield
A11 runs straight up the field and after the ball has left the passer's hand,
B9 Illegally blocks A11 and throws him off his pattern. The pass is completed
to A10 who was clearly on the opposite side of the
field.
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Ruling: There is no pass interference call on B9; however, a flag should have
been dropped for the illegal block.(7.5.11B)Casebook