Despite a costly error in his AFC Asian Cup debut, forward Koya Kitagawa said Thursday he has "no regrets" and is focused on Japan's upcoming matches at the tournament in the United Arab Emirates.A 73rd-minute substitute in Japan's 3-2 win over Group F opponents Turkmenistan in Abu Dhabi on Wednesday, the 22-year-old Shimizu S-Pulse forward contributed to the Central Asian side's final goal after losing possession while trying to evade a challenge.With Japan up 3-1, Kitagawa's turnover allowed Turkmenistan to quickly advance the ball before Samurai Blue keeper Shuichi Gonda conceded a penal…READ FULL ARTICLE