The second leg of both ties take place next week.
St Pat's and Shamrock Rovers both have work to do if they're to progress further in qualifying for the Conference League.
Pat's lost 4-1 to Besiktas last night in the first leg of their third round tie at Tallaght Stadium, while Rovers suffered a 1-0 defeat to Ballkani in Kosovo.
The second leg of both ties take place next week.
There are two games in the Premier Division of the SSE Airtricity League tonight.
Both matches kick off at 7.45.

Leinster Face Ulster In This Evenings URC Clash In Belfast
Kildare Senior Football Team vs Laois
Friday Morning Sports Update
Kildare Hurling Team vs Wexford
Leinster Make A Dozen Changes To Their Squad Ahead Of Tomorrows Clash With Ulster
Former Arsenal Goalkeeper, Alex Manninger, Dies In Road Accident
LGFA Approves Twelve New Playing Rule For Championship
Scott Bemand Names Ireland Team For Women's Six Nations Game With Italy