They'll now face Cork City in the last four
St Patrick's Athletic needed extra-time to see of the challenge of Galway United in their FAI Cup quarter-final at Richmond Park last night.
The Saints were 3-1 winners - and will now face Cork City in the last four.
After their dramatic win over Sligo Rovers, Kerry have been drawn to face Shamrock Rovers at Tallaght Stadium.
Both semi-finals will take place across the first weekend in October.

Friday Morning Sports Update
Munster Make Ten Changes To Their Team For Saturday's Game Against Exeter
Manchester United Aim To Clear €1.4 Million A Week From Wage Bill For Future Signings
Suncroft's Cian Prendergast Returns To Captain Connacht In Tomorrow's Game Against Sharks
Thursday Morning Sports Update
Kildare U20 Football Team & Panel vs Offaly
Wednesday Morning Sport Update
New Report Shows Growing Pressure On Volunteers At GAA Club