Both players have scarcely featured so far this seaon as injuries have ruled both players out of action.
However Latics boss Roberto Martinez has revealed that both are nearing a return to fitness and will be like new signings for the club.
Speaking to the Wigan Evening Post, Martinez said: “Ryo will be like a new signing when he regains full fitness.
“Probably a couple of weeks ago I thought he would be out for a long period, but we have had very good news from the doctor and he will be back in contention within a fortnight. The consultant in Japan examined him, and next week’s FA Cup tie will hopefully be the start of his season.
“Albert Crusat is also not far away, but there is a complication in his tendon and that makes it a little bit more difficult to put a date on it.”
With the Latics looking short of a wide player who can beat a man, the return of both Crusat and Myacichi will be a big boost to the team.