Arsenal have confirmed that 18-year-old Japanese forward Ryo Miyaichi will be joining the club in January.The player, who has represented Japan at Under-17 level, impressed Gunners manager Arsene Wenger during a trial spell with the club earlier this year. "He trialled with us in the summer and has raw ability which has attracted many clubs around the world," Wenger told the club's official website. "I look forward to helping him fulfil his potential here at Arsenal." Miyaichi is set to take part in the forthcoming All Japan High School Soccer Tournament, where he is representing Chukyodai Chuyko High School. Once the national championships are concluded, Ryo will join up with his new team-mates in London.