After the U-23 squad was released by the coach, it was revealed that Osman Bukari, Benson Anang and Kwame Poku were included; three players who featured for the Black Stars in the AFCON qualifiers.
The Black Meteors are set for back-to-back friendly battles against Japan with the trio being surprisingly included to the list.
Bukari, who features for KAA Gent, was allowed to feature for the Black Stars against South Africa and Sao Tome during the last phase of the AFCON qualifiers. It was the same for Benson Anang, a right-back in Slovakia-based side MSK Zilina.
Kwame Poku, who plays for England's fourth-tier club Colchester, earned some minutes in the 3-1 win over Sao Tome and Principe.
They will face Japan on June 4 and June 8. Imoro Ibrahim and Salifu Ibrahim were later included in the squad.
Full squad:
Goalkeepers: William Essu (Vision FC), Richmond Ayi (Hearts of Oak), Richard Baidoo (Karela FC)
Centre Backs: Frank Assinki (HB Koge, Denmark), Yussif Mubarik (Asante Kotoko), Kobina Amoah (Golden Kick SC), Frank Amoabeng (Audace Cerignola, Italy), Abdul Mumin (Guimaraes, Portugal)
Left Backs: Samuel Ashie Quaye (Great Olympics), Ibrahim Moro (Asante Kotoko)
Right Backs: Uzair Alhassan (Tamale Utrecht), Benson Annang (Zilina, Slovakia)
Midfielders: Samuel Agyepong (Wafa), Yaw Yeboah (Krakow, Poland), Issah Hudu (Liberty Professionals), Augustine Boakye (Wafa), Patrick Mensah (Heart of Lions), Emmanuel Essiam (Berekum Chelsea), Jonah Attuquaye (Legon Cities)
Left Wingers: Osman Bukari (KAA Gent, Belgium), Maxwell Abbey Quaye (Great Olympics), Salifu Ibrahim (Hearts of Oak)
Right wingers: Anim Cudjoe (Legon Cities), Joselpho Barnes (Schalke)
Forwards: Percious Boah (Dreams FC), Afriyie Banieh Daniel (Hearts of Oak), Adu-Boffour Kwame Poku (Colchester Utd), Frimpong Boateng (King Faisal), Samuel Boakye (Eleven Wonders), Diawusie Taylor (Karela FC), Kwame Peprah (King Faisal)