A football play diagram on a chalkboard in white chalk showing the formations and assignments.

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Size: 4000px × 3000px
Photo credit: © Keith Bell / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: american, ball, black, blackboard, board, book, chalk, chalkboard, coach, diagram, foot, football, game, pigskin, play, playbook, players, quarterback, receiver, running, sport, white