Derry City and Shamrock Rovers meet again tonight in The Brandywell with a place in the FAI Ford Cup final at stake.
The sides drew 1-1 on Sunday in Tallaght Stadium as Rory Patterson rescued a replay for Derry with a late goal.
But with a 48-hour turnaround for the second clash, the home side have some injury doubts.
Goalkeeper Ger Doherty is expected to miss the game through illness.
Ryan McBride is troubled with a hamstring problem. Barry McNamee, Barry Molloy, and Philip Lowry are also doubtful.
Luke Byrne is suspended for the Hoops having picked up his fourth yellow card of the season but otherwise Rovers have a full squad available.
"We played okay on Sunday and we just need to build on that level," said boss Pat Fenlon ahead of the replay.
"If we get in front, we need to see out the game. They are at home so we expect them to have a bigger go.
"It is a quick turnaround so we just have to deal with it."
St Patrick's Athletic await the winner in the final at the Aviva Stadium.