Ключевые слова: above, active, american, arrow, attack, background, ball, chalk, chalkboard, championship, closeup, coach, competition, concept, defense, design, diagram, drawn, field, football, game, goal, graphic, green, instruction, league, object, organization, pieces, pitch, plan, playing, professional, quarterback, rugby, running, safety, scheme, score, sign, sketch, sport, strategy, success, tactic, team, teamwork, view,