Larne suffered a disappointing European exit with a single goal defeat to St. Joseph's at Inver Park.
Scoreless after the first leg, the visitors from Gibraltar bagged what proved to be the winner with just over ten minutes remaining when defender Julian Valarino found the net.
Tiernan Lynch's side had been reduced to ten men just moments earlier following Mark Randall's dismissal for a second bookable offence.
That chain of events proved a challenge too far for the home side who had created a number of opportunities throughout the game.
The visitors came close to breaking the deadlock on the night when Juanma produced an early save from Rohan Ferguson while, later in the first half, both Lee Bonis and Leroy Millar had chances. Indeed, Bonis did have the ball in the net just after the half-hour mark although this was ruled out for a foul.
After the break Millar headed just wide from a Randall corner followed by a Daniel Kearns overhead kick.
But, ultimately, it was to be the visitors that progressed to go forward to meet Czech side Slavia Prague.
Larne: Ferguson, Balmer, Kearns, Randall, Bonis, Doherty, Gordon, Bolger, Millar, Cosgrove, Hughes subs McIntyre (not used), Kelly (not used), Sule (replaced Gordon 86), Scott (replaced Kearns 86), Donnelly (not used), Sloan (not used), Lusty (not used), Aretzis (not used), Greer (not used)
St. Joseph's: Fitzsimons, Bauti, Yussuf, Olmos, Mouelhi, K. Robba, Peters, Villar, Pons, Juanma, Domingo Ferrer subs J. Robba (not used), Serra (replaced Olmos 90+2), Valarino (replaced K. Robba 63), Ezequiel Rojas (not used), Pablo Rosa (not used), Manuel Caballero (not used), Boro (replaced Yussuf 63), Christian Anzar (replaced Domingo Ferrer 74), Cristian Pecci (replaced Bauti 74)