Shamrocks are bidding to make a first final since 2007 against last year's beaten finalists.
Ferbane and Shamrocks meet again in this year's Offaly Senior Football Championship, this time a place in the county final is on the line.
Shamrocks managed to beat last year's beaten finalists by a single point in the competition's opening round.
Since then Ferbane have started to pick up steam with a victory over the 2022 champions Rhode in the quarter finals last time out.
Shamrocks meanwhile scraped past Ballycommon on penalties in their last eight tie.
Tullamore Tribune Sports Editor Kevin Corrigan says on balance, it's hard one to call:
Throw in at O'Connor Park is set for 2.15pm on Sunday.
Our coverage of Offaly GAA is with thanks to Leahy Midland Auctioneers.
Thinking of buying or selling a property in Laois, Offaly or Westmeath? Leahy Midlands Auctioneers are the experts - leahyauctioneers.ie.
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