The draw takes place at 7:45pm tonight.
A potential repeat of the 2020 Offaly Senior Football Final is on the cards in the last four of this season's competition.
Rhode, Tullamore, Ferbane and Durrow will be in the hat for the draw at 7:45 this evening.
Two goals from Jack Clancy and one from Ronan Maguire ensured Ferbane overcame Edenderry on Saturday evening.
Experience also won the day in the clash between Rhode and Shamrocks yesterday.
Niall McNamee top scored with seven points including four from play as the reigning champions ran out five point winners.
Results:
- Ferbane 3-11 - 0-14 Edenderry
- Rhode 1-17 - 2-9 Shamrocks
It's shaping up to be two games of youth v experience no matter what the outcome of tonight's draw.
Rhode and Ferbane bring plenty of championship and inter-county experience to the table, interspersed with an injection of fresh faces in the forward line.
Tullamore bring a blend of youth an experience to the table and will face a number of key selection decisions as they aim to make the most of their prolific youngsters.
Tune in to the Offaly GAA Facebook page on Monday evening at 7.45pm.
— Official Offaly GAA (@Offaly_GAA) October 3, 2021
We'll have a live broadcast of the semi-final draws for the Senior, Senior B, Intermediate and Junior A Football Championships pic.twitter.com/C3tmIbXRLN
They do have the added bounce from playing in a county final last year so they know what it takes to reach that level.
Durrow are the potential joker in the pack as they look to back up a terrific group stage, going undefeated against Rhode and Ferbane in the process.
Could they pull off a repeat performance in the knockout round? Plenty of key questions and talking points on the cards.
Our Offaly GAA analyst John Reynolds says Rhode remain championship favourites:
Laois SFC: Killeshin Deliver Knockout Blow To Portlaoise
Westmeath SFC: Moate All Whites Turn Attention To County "Standard Bearers"
Town Continue Rich Vein Of Form With Creditable Students Draw
Offaly SFC: Shamrocks And Tullamore Secure Semi-Final Spots
John Heslin Aiming To Feature For Westmeath Next Season
Westmeath SFC: St Loman's Mullingar And Moate All Whites Progress
Athlone Town Move Closer To Women's Premier Division Title
Alex Dunne Keeps F2 Title Hopes Alive With Spanish GP Podium
I've Great People Around Me - Shane Lowry
Trump To Lift US Tariff On Irish Whiskey After Talks With Shane Lowry
Lowry Breaks Title Drought With Magnificent Irish Open Victory
Shane Lowry Leading The Way At The Irish Open
Alex Dunne Secures Front Row Start For F2 Feature Race In Madrid
Former Golf Coach Stunned With Stuart Grehan Not Competing At Irish Open
Treaty United The Next Test For Athlone Town
Mark McHugh To Remain In Charge Of Westmeath Footballers
Cannonball 2026 Heading For Offaly Today
Westmeath SFC: St Loman's Mullingar Aiming To Push Forward
Laois SFC: Places In The Semi-Finals Up For Grabs