crackback

listen to the pronunciation of crackback
İngilizce - İngilizce
Describing a block in which the blocker, positioned wide, blocks back towards where the ball was snapped
(Spor) A blind-side block on a defensive back in football by a pass receiver who starts downfield and then cuts back to the middle of the line

Since it is illegal to do so, he was penalized for his crackback block.

crackback