Despite their World Cup teams preparing to battle for Group H supremacy, Japan and Senegal fans were united Sunday by a desire to leave Ekaterinburg Arena as spotlessly clean as they found it.Following the opening round of group-stage matches, both countries' traveling supporters attracted international media attention for their organized stadium-cleaning efforts after the full-time whistle.For long-term followers of Japanese football, this was hardly a revelation, with tales of Samurai Blue fans tidying after themselves having been regularly reported since the 1998 World Cup in France.The …READ FULL ARTICLE