Port were impressive 11 point winners in this year's county final.
Former Laois footballer John O'Loughlin believes Portarlington are well set for progress in the Leinster Championship if they reproduce the level of their county final winning performance.
That win came off the back of a series of narrow victories, with Martin Murphy's side beating O'Dempseys on a wet afternoon in O'Moore Park by 2-13 to 8 points.
Port travel to play the Wexford county champions Castletown Liam Mellows on Sunday where throw in is set for 2.30.
John O'Loughlin says the Laois side have the experience and the form to win:
We'll have live commentary of the action from Wexford Park on the Inside Line.