In the game of football, an signal is when the signal caller, just before the snap of the play, changes the selected play at the line of scrimmage. Essentially, it's a last-minute adjustment! The quarterback might https://xem-bng-trc-tip-ko-nh-ci326302.tokka-blog.com/42523247/a-is-an-play-call-in-the-nfl-an-easy-explanation