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-ci954033.bloginwi.com/75966583/a-is-an-signal-in-american-football-a-simple-explanation