Koichi Takeuchi, chairman of the Osaka fan group, was quoted by Japanese media as saying the idea was to help foreign friends who feared they would be viewed as hooligans by Japanese police.

• 日本媒体援引大阪球迷组织主席竹内小知(音)的话说，这个点子是为了帮助那些担心自己被日本警察看成流氓的外国朋友。