Crack-back Block

[Michi40]

I need help, I think myteam is been suffering some running plays with crack back blocks.

I want to know if this block is considered a crack back block and what would be the correct call.

I will talk about right and left always from the offense point of view

Team A on own 25, A10 pitches ball to the right to Half Back A35 on a Sweep Right play. A82, wide reciever in the right side of the field, goes to block B53, SAM Linebacker, who is focusing on A35 and therefore does not see A82 coming, or sees him but late to react. A82 blocks B53 at knee level.


¿What is the call?
¿Isn´t it a crack back block, because A82 is blocking in the opposite direction of ball movement?

Thank you very much.
Alfonso Bravo
Granada Universitarios (Granada-Spain)