Sporting Fingal and Bray Wanderers meet at Morton Stadium tonight in the first leg of the promotion/relegation play-off (kick-off 7.45pm).
Fingal defender John Frost is struggling with a hamstring strain and is unlikely to feature while Alan Kirby will undergo a pre-match fitness test on a foot problem.
Robert Bayly and Robbie Doyle are available again after serving suspensions.
Manager Liam Buckley said: “These are our biggest games of the season. Our aim at the start of this season was promotion and we’ve two games now in which to achieve it.
“Eddie Gormley and his Bray team will be as eager as us to win this fixture, with the ultimate prize of top-flight football at stake.
“A good victory over Shelbourne on Tuesday puts us in good spirits, though we need to be equally, or a bit more, on form to emerge through this play-off.
“These are busy times for us but we’re not complaining. This time last year, we had finished our season but to have two more play-off matches and an FAI Ford Cup final to contest over the next ten days shows we’re progressing well.”
Wanderers have to plan without the experienced Stephen Brennan and young striker John Mulroy, both of whom are suspended for the game.
Otherwise Wanderers boss Eddie Gormley has a full squad to pick from.
Gormley said: "We started well on Tuesday night and did ok in the first half, but we never came out for the second half.
“I was very disappointed, and we didn't deserve anything from the game with our second-half performance.
“Friday will be another tough game. In my opinion, Fingal are a top-four side in the Premier Division with the players they have.
“We have to go out and improve on our semi-final performance. That game was over before it started. We need to give ourselves a chance by bringing them back to Bray with something to play for on Monday.”