Ключевые слова: american, arrow, attack, background, blackboard, board, chalk, chalkboard, closeup, coach, competition, concept, cup, defense, defensive, diagram, drawing, education, field, football, game, goal, idea, illustration, instruction, league, line, manager, national, organization, pitch, plan, play, player, playing, popular, rugby, scheme, sketch, sport, sports, strategy, super, tactic, tactical, team, teamwork, texture, training, zone,