Fullback (gridiron football)
A fullback (FB) is a position in the
Many great runners in the history of American football have been fullbacks, including
In the days before
Before the emergence of the T-formation in the 1940s, most teams used four offensive backs, lined up behind the offensive line, on every play: a quarterback, two halfbacks, and a fullback. The quarterback began each play a quarter of the way "back" behind the offensive line, the halfbacks began each play side by side and halfway "back" behind the offensive line, and the fullback began each play the farthest "back" behind the offensive line. Each offensive back was known by a position name that described his relative distance behind the offensive line.
As the quarterback was typically the offensive back who first touched the ball after the snap, quarterbacks were the offensive back most likely to pass the ball, although any eligible player may do so. As the game evolved and alternate formations came in and out of fashion, halfbacks (reduced to typically just one rather than two) emerged as the offensive back most likely to run the ball, although, again, any eligible player may do so. "Halfback" came to be synonymous with "running back". Fullbacks were primarily used as blocking backs with only occasional ball carrying duties. As formations began to favor placing the blocking back ahead of/ closer to the line of scrimmage than the running back, these blocking backs retained the name "fullback" even though they were closer to the offensive line than the halfback. "Fullback" became a misnomer, and the term "halfback" declined in usage, replaced variously with the more descriptive term "tailback" or the generic term "running back".
In the modern game, when the quarterback is under center, the fullback most often lines up directly behind the quarterback and in front of the