Japan pulled off a surprise 2-1 victory over a 10-man Colombia in their Group H opener in Saransk on Tuesday. Here are five things we learned from the match.Osako is the man up front for JapanYuya Osako has proven himself to be Japan's first-choice striker. With Japan rotating between the Werder Bremen forward, Mainz's Yoshinori Muto and Leicester's Shinji Okazaki as the lone target man in their warm-up matches, Osako's 73rd-minute winner showed he was the man for the job. The 28-year-old continually made dangerous runs into the box, held the ball up well, and even backtracked to crucially …READ FULL ARTICLE