The NFL's history dates to 1920, with thousands of players taking the field over its different eras.
But who are the best of the best? The Houston Chronicle's John McClain, a member of the Pro Football Hall of Fame's Selection Committee who has covered the league for parts of five decades, has chosen each franchise's best player for the league's current teams and some of its defunct ones.
Some of the choices were no-brainers, while others may surprise you.