Arsenal manager Arsene Wenger is confident that Ryo Miyaichi has the right qualities to carve out a successful career.
The 20-year-old, who spent the majority of last season on loan at Wigan Athletic, has been nursing an ankle ligament injury since March.
"I have great hopes for Ryo because he has the traditional Japanese qualities," Wenger told the club's official website. "Japanese players technically have a very good touch, they are mobile, agile, a bit lightweight but they move well. It's usually a player that has a great attitude towards the team. Ryo has a fantastic attitude for sure."
Miyaichi moved to the Emirates in 2011.