Saint Patricks Athletic manager Liam Buckly says they were poor in the second half of last night second qualifying round second leg against Legia Warsaw at Tallaght Stadium.
The Saints lost the game 5-0 having conceded 4 goals in the second half, 6-1 the score on aggregate.
Warsaw now meet Celtic in the next round.
Tonight Sligo Rovers have the chance to advance in the Europa league when they host Rosenberg at the Showgrounds.
The Western side lead 2-1 on aggregate going into the game which kicks off at 7.
In the nights other ties Dundalk go to Hajduk Split (Ha-juke Split) trailing 2-1 from the first leg while Derry go Shakhtyor Soligorsjk (Shack-tore Solig gorsk) with a 1-0 deficit.
The Candy stripes kick off at 6 while Dundalk start at 7.15.
Staying with soccer and the Ireland under 19 women's team face the Netherlands in the European semi final tonight in Oslo.
Kick off is at 6.
