Japan fans use blue bags to uphold a cleansing World Cup tradition after draw The Washington Post‘A bird that flies never leaves a trace’: Why is Japan always so tidy at the World Cup? CNNJapanese fans clean Dallas Stadium after World Cup opener against Netherlands FOX 4 News Dallas-Fort WorthJameis Winston helps Japan’s fans clean up after World Cup match ESPNJapanese soccer fans clean up ‘Dallas Stadium’ after tie game with Netherlands in World Cup WFAA