The average length of a player's career in the National Football League is relatively short compared to other sports.
[1] On the other end, the shortest average careers are the running backs, only 2.57 seasons.
[1] According to data compiled by another study,[2] quarterbacks and offensive linemen are next on the list with average career spans of 4.44 and 3.63 seasons, respectively.
Wide receivers careers average just above running backs at 2.81 seasons[2] Some players avoid injury and maintain their high skill level.
The following list has the top 250 players who have the most regular season game appearances.