Ключевые слова: american, american football, athletic, athletics, background, ball, banner, bird, brown, clean, college, competition, copy space, empty, environment, equipment, exercise, field, final, football, game, goal, grass, green, green yard, ground, lace, laces, league, leather, line, object, outside, pigskin, play, recreation, sideline, sky, space, sport, sports background, stadium, sunset, superbowl, team, touchdown, turf, yard, youth,