Yuki Ohashi’s four goals in eight games for Blackburn Rovers have been the highlight of eight Japanese players so far this term in the English second-tier Championship, which has quickly become a new battlefield for Samurai Blue hopefuls. The influx resulted from the Football Association relaxing its regulations on signing overseas talent in June last year, allowing Premier League and Championship teams to add up to four players who did not meet the existing criteria, including points requirements earned through playing for national teams. New Leeds United midfielder Ao Tanaka is the only name…