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.

Kildare SF Team (one late change) vs Wexford
Bournmouth Sign Experienced Goalkeeper Fraser Forster On A Short-Term Contract
Crystal Palace Complete The Club Record Signing Of Brennan Johnson From Tottenham
It's The Women's National Cup Semi Finals Weekend
Donadea's Will Connors To Start For Leinster In Saturday's Clash Against Connacht
Liam Rosenior Named Leading Contender To Become Chelsea's New Head Coach
Friday Morning Sports Update