David Capper makes his home debut for the Lily-whites this evening while newly arrived striker Richard Sinton is likely to play some part in what is an important game for the home side.
Last season three wins over Harps more or less kept Jim McLaughlin's side up and right now they could do with taking all three points and putting a little bit of daylight between themselves and Bohemians.
While the starting line-up for the hosts may be the same, Charlie McGeever is certain to make changes -the whole of his midfield has to be replaced for starters.
Donal O'Brien and Brian Flood are both ruled out as they dislocated shoulders on Saturday night and the former may be out for quite some time. Eamon Kavanagh starts a two-match suspension while Tom Mohan is struggling to shake off a back problem in order to play.
Paddy McGrenaghan, John Gerard McGettigan, Stephen Kelly and Kevin McHugh are all possible starters in the absence of the regulars while Jonathan Speak, rested at the weekend, will be in a toss up with Davie Dowling for the second striker's place.
Last two seasons: 1997/98: Dundalk 2 Harps 0, Harps 0 Dundalk 1, Dundalk 2 Harps 1; 98/99: Harps 0 Dundalk 0.
Recent league form: Dundalk: LLLWD; Harps: DWLLD.
Leading scorers: Dundalk: Withnell (three); Harps: Mulligan (five).
Betting: Home: 13/8, Draw: 7/4, Away: 13/8.
Referee: E Barr (Dublin)