Ferbane and Rhode lie in wait for the weekend's winners.
Shamrocks and Tullamore booked their places in the semi-finals of the Offaly Football Championship over the weekend.
The two clubs are now just 60 minutes away from an appearance in the final.
Nigel Dunne's side secured a 1-19 to 1-12 win over Clara on Saturday to seal a final four clash against Ferbane.
Paddy Dunican kicked 1-12 for his side, with Dunne himself scoring 0-3.
The Rock's are aiming to reach their first decider since 2007.
Meanwhile, a strong second half display was enough for Tullamore as they beat Ballycommon by 5-13 to 0-12 on Sunday.
John Furlong got 2-0, with Harry Plunkett ending with 1-3 and Luke Plunkett and Luke Bourke getting the other goals.
Tullamore will take on Rhode for a place in the final as they continue their hunt for a fourth title on the bounce.
Our coverage of Offaly GAA is with thanks to Leahy Midland Auctioneers.
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