Ключевые слова: american, athlete, athletics, background, ball, brown, championship, college, collegiate, competition, copy, equipment, field, fifty, football, game, gear, goal, grass, green, ground, helmets, high, horizontal, laces, league, leather, line, mask, nfl, nobody, outdoors, pigskin, play, playing, professional, protection, recreation, red, safety, school, space, sport, sports, stadium, team, traditional, white, yard, youth,