In the European preliminaries of the World Cup, O'Reilly made his England debut and helped England defeat Serbia 2-0 at home.
O'Reilly is the 1,296th player to appear in the history of the England team. After the game, Stones awarded him a commemorative hat in the dressing room.
Stones said: "I think we have all received this hat, and this is O'Reilly's. Seeing you work so hard at Manchester City and finally realizing your dream, I am really honored to be able to award you this hat. Congratulations."
O'Reilly said: "Putting on this jersey is a dream come true for me and my family. I just want to thank everyone, thank the coach for giving me this opportunity, and thank all the staff for welcoming me so warmly."
