The 20-year-old is being linked with a move to League of Ireland Premier Division side St Patrick's Athletic.
St Pat's recently signed former PNE striker Eoin Doyle from Bolton Wanderers.
O'Reilly recently returned from a loan spell at Stalybridge Celtic and his chances of forcing his way into the North End side look slim.
Most Popular
-
1
Preston North End boss confident deals will get done as search for wing back and striker continue
-
2
Preston North End's predicted line-up for Championship clash at Luton Town
-
3
Preston North End boss provides injury update on Manchester United loanee and addresses specualtion linking them to another Red Devils youngster
-
4
Teenage Preston police cadet wins art competiton hosted by Larches and Savick Boxing Club to help keep troubled youths off the streets
-
5
Preston North End debutant talks making the step up, learning from Robbie Brady and Alvaro Fernandez and this only being the beginning
He was signed by PNE from Cork-based side Ringmahon Rangers as a teenager, doing a scholarship before signing professional.
His one first-team appearance came as a substitute against Aston Villa in December 2018, a game Ethan Walker also came off the bench in.
Last year, O'Reilly had a spell in the League of Ireland, playing on loan for Waterford.
Thanks for reading. If you value what we do and are able to support us, a digital subscription is just £1 month for the first two months. Try us today by clicking here