Ключевые слова: arrow, attack, background, ball, blackboard, board, card, chalk, chalkboard, closeup, coach, concept, defensive, diagram, drawing, erased, field, football, frame, game, gate, goal, green, idea, illustration, instruction, line, organization, pieces, pitch, plan, play, player, scheme, sport, sports, strategy, tactic, tactical, texture, training, wooden, zone,