Determined to turn the stands blue for Japan's World Cup knockout showdown with Brazil on Monday, Japanese fans are ready with a massive stock of double-duty blue plastic bags -- for cheering on Samurai Blue and cleaning up litter afterward.During Japan's final group-stage match against Sweden last Thursday at Dallas Stadium, a section of the stands turned blue as fans waved air-filled bags and cheered when the players entered the pitch.Masaya Fukumori, 38, a longtime fan of the Japan national team, recalled that fans started bringing the bags at the 1998 France tournament after supporters …READ FULL ARTICLE