I'm seeing a lot of them, and no penalty flags. Is this bad officiating or am I missing something?
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I believe chop blocks are legal as long as the two offensive lineman are not next to each other.
I think they are mostly cut blocking. chop block is when a dlineman is engaged high and gets cut low which is the illegal one.
Cut block (Legal) - 1 on 1 block where OL cuts the legs of DL
Chop block (Illegal) - 2 on 1 block where first OL engages DL, and second OL cuts his legs.
MSU is "cut blocking" on the edge to seal, it is on the OLB (or CB) to fill the void in the instance.
Do all the good teams do this, or is there a counter to it?
good olines will generally want to keep their linemen on their feet to block on the second level.
Usually teams cut block on the backside of a play, so like the DE cant run the play down from behind. Its not real common to see it on the front side.
No. The refs at the college level have a hard time at calling it. They are, however, easy on the illegal man down field (for screens and pass options).