O'Reilly was given his bow by Pep Guardiola as City faced United in the 2024 Community Shield, with the academy graduate starting in a midfield role at Wembley. Bernardo Silva's late strike would take the game to penalties, with City triumphing 7-6 in the shootout, and, reflecting on the day and what he would tell himself if he could replay that special day, O'Reilly said: "I'd say [to myself] just embrace it and enjoy the moment more.
"A young player coming through, nervous. It was crazy. I was a bit nervous, it was a bit scary but looking back I'd say just enjoy it, take it all in, special day, play with fun, go out there and enjoy it."