normal size of a player at this position. Often, the position is played by a more agile or slightly undersized defensive tackle. Because of the increased popularity of the 3–4 defense, the value of a defensive tackle prospect that can possibly be used in this manner has increased. They are used to occupy an offensive lineman, on pass rushing plays to let the outside linebackers get a sack. They block screen passes and are put outside the offensive tackles to get a sack. Defensive ends in the 3–4 defense average a height of 6′3″–6′8″ and a weight of 285–315 lbs. See also Glossary of American football Edge rusher References American football positions