The battle to escape the drop in the SSE Airtricity Premier Division will go down to the final day of the season with three teams involved.
Finn Harps and Drogheda United have already had their fate sealed ahead of a 10-team First Division in 2018.
Galway United are the favourites to join them but a win over Dundalk could put Sligo Rovers and St Patrick’s Athletic in jeopardy.
The game between Galway and Dundalk will be broadcast live on RTE2, coverage beginning at 19:30.
There will also be a camera in Turner's Cross for Cork City's game against Bray Wanderers to capture this season's Premier Division winners lifting the trophy.
Fixtures – all 7:45pm:
Galway United v Dundalk, Eamonn Deacy Park
Derry City v St Patrick’s Athletic, Maginn Park
Drogheda United v Sligo Rovers, United Park
Permutations:
Galway United
Will be safe if they beat Dundalk and either Sligo Rovers or St Patrick’s Athletic lose. Anything other than a victory and Galway will go down.
Sligo Rovers
Will be safe if they secure a point against Drogheda United. The Bit o’ Red know that they will also be in the top flight if Galway fail to beat Dundalk
St Patrick’s Athletic
Will be safe if they secure a point against Derry City, The Saints could stay up with a defeat if Galway United drop points against Dundalk, or Sligo Rovers lose to Drogheda. Pat’s have a four-goal advantage over Sligo.
