Old Leighlin are the opposition for the Laois winners.
Portarlington begin their journey in the provincial championship this weekend.
Pat Roe's side take on Carlow champions Old Leighlin in the first round, with the Laois champions set to play their third match in four weeks.
A three point win over Courtwood in a replay secured their spot in Leinster, with the club aiming to further than their early exit in 2024.
Team captain Ronan Coffey says they're aware of the challenge that awaits them:
Throw in is at 6:15pm from Cullen Park tomorrow evening.
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