Sligo claimed a shock victory in the Europa League second qualifying round as they claimed a 2-1 win over Rosenborg in Norway.
Captain Alan Keane and Danny North had the Irish side 2-0 up before an own-goal from goalkeeper Gary Rogers handed the 22-time Norwegian champions a lifeline for the second leg.
Dundalk did not fare so well in their first leg as they lost 2-0 at home to Hajduk Split thanks to goals from Mijo Caktas and Nikola Vlasic.
Substitute Andy Waterworth grabbed a winner three minutes from time as Linfield claimed a 1-0 home win over AIK but that was as good as it got for the Northern Irish teams.
Derry went down 1-0 at home to Shakhtyor thanks to a goal from Nikolai Yanush while strikes from Dardan Rexhepi, Mauricio Albornoz, Jacob Larsson and a penalty from Niklas Barkroth saw Crusaders lose 4-0 to Brommapojkarna in Sweden.
Europa League News
Nicol: Emery sacking absolutely his fault
Steve Nicol says the apathy of players and fans are partly why Arsenal had no choice but to sack Unai Emery.
Sources: Unai Emery's position at Arsenal 'untenable'
Senior figures at Arsenal are reviewing the position of Unai Emery, and he could be sacked before Sunday's trip to Norwich, sources have told ESPN.
Chong's inexperience proved costly for Man United
Steve Nicol talks through Tahith Chong's epic miss for Man United vs. Astana in the Europa League.
Xhaka 5/10 as Arsenal lose again, pressure on Emery increases
Arsenal's winless run reached seven games, as Eintracht Frankfurt turned around a 1-0 deficit to win 2-1 and put Unai Emery's future in real doubt.
Arsenal woes continue with defeat to Frankfurt at half-empty Emirates
Arsenal endured more home misery as they suffered a 2-1 to Eintracht Frankfurt in the Europa League on Thursday.
Jesse Lingard 'led by example' as Man United captain
Ole Gunnar Solskjaer sees plenty of positives for Man United despite their defeat to Astana.