Last year's beaten finalists meet the recent three time champions.
"Kilcormac-Killoughey and St Rynagh's will be a huge game for both sides".
That's according to Midlands 103 commentator Joe Troy ahead of round four of the Offaly Senior Hurling Championship this weekend.
Both sides go into this encounter with 100% records having won their opening two games so far, with the winners likely to end up finishing top of the group.
Speaking to Liam White, Joe Troy looks forward to a potentially decisive round in the competition:
Throw in on Saturday from St Brendan's Park, Birr is at 4:00pm.
Elsewhere, in group one Kinnitty face Tullamore, while on Sunday in group two, Coolderry take on Seir Kieran, while Belmont and Ballinamere meet in Glenisk O'Connor Park.
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