Both Armagh and Antrim are likely to include debutants in Sunday's opening Gaelic Life McKenna Cup Section C clash at the Athletic Grounds (1400 GMT).
New Antrim boss Liam Bradley has given call-ups to several men, including Paddy Carey, Liam Carlin, Paul Conlon and former Armagh player Dara Edwards.
Armagh veterans Enda McNulty, Paul McGrane, Francie Bellew and Steven McDonnell will miss the McKenna Cup.
Goalkeeper Ciaran McKinney has left the panel while Andy Mallon is out injured.
McKinney has opted out of the squad after becoming a father in September.
Mallon is still being troubled by a fractured arm which he sustained in last year's Ulster Final against Fermanagh.
There has been speculation that other Armagh veterans could join Oisin McConville in quitting the intercounty scene but Peter McDonnell has yet to hear of any further retirements.
The Armagh panel are scheduled to meet with McDonnell over the weekend while Bradley will have his first squad session with his panel on Friday.
Edwards was part of Armagh's McKenna Cup squad last year but the St Brigid's player has switched allegiance to the Saffrons.
Sean McVeigh is also a late addition to the Antrim squad.
Armagh squad: Ronan Austin, Conor Clarke, Ronan Clarke, Brendan Donaghy, JP Donnelly, Joe Feeney, Ryan Henderson, James Lavery, Malachy Mackin, Brian Mallon, Vincent Martin, Finian Moriarty, Tony McClelland, Barry McDonald, Eugene McDonnell, Philip McElroy, Ciaran McKeever, Paddy McKeever, Shane O'Neill, Aidan O'Rourke, Kevin O'Rourke, Martin O'Rourke, Neil O'Rourke, Chris Rafferty, Paudie Rodgers, Barry Shannon, Gareth Smyth, Barry Toner, Kieran Toner.
Antrim squad: Colin Brady, Kevin Brady, Paddy Carey, Liam Carlin, Ciaran Close, Paddy Cunningham, Paul Conlon, Conor Creaney, Aaron Douglas, Dara Edwards, John Finucane, Aodhan Gallagher, Damien Gault, Donal Graham, Benny Hasson, Conor Maxwell, Gerard McAleese, David McAlernon, Michael McCann, Michael Magill, Kevin McGlinchey, Conor McGoldrick, Sean McGreevy, Andy McLean, Kevin McQuillan, Neil O'Connell, Tony Scullion