With just four days remaining until their World Cup campaign kicks off, Japan were focused Friday on shutting down the potent attack of first-up opponents Colombia.On the second day of their camp in Kazan, the Samurai Blue opened training to the media for less than an hour, posing for their official World Cup portrait before conducting speed and flexibility drills.With a lineup including 2014 Golden Boot winner James Rodriguez and Colombia's all-time leading scorer Radamel Falcao, La Tricolor could pose serious problems in Group H for Japan, who have not kept a clean sheet with a full-stren…READ FULL ARTICLE