Both will be at full capacity.
Both FAI Cup semi finals tonight will have full houses.
Waterford will bid to reach their first decider since 2004.
They travel to Dalymount Park to take on Bohemians.
Holders Dundalk will qualify for a seventh successive Cup Final should they defeat St Patrick's Athletic at Richmond Park.
The two matches kick off at 7.45.
There are also two games in the First Division of the SSE Airtricity League.
Galway United take on Bray Wanderers,
And it's UCD versus Treaty United.

Ulster Back-Rower Juarno Augustus Out For A Number Of Weeks Due To An Ankle Injury
Tuesday Morning Sports Update
Lossiemouth Wins Today's Feature At Leopardstown's December Hurdle
Ciarán Frawley Signs Two-Year Deal With Connacht
Racing Action Comes To A Close At Leopardstown Christmas Festival Today
Monday Morning Sports Update
Stephen's Day Soccer Update
Stephen's Day Racing Schedule