Celtic will face Lincoln Red Imps of Gibraltar in the second round of Champions League qualifying next week.
The minnows overcame a 2-1 first leg deficit by defeating Flora Tallinn of Estonia 2-0 at home in the Victoria Stadium for a 3-2 aggregate triumph.
Joseph Luis Chipolina opened the scoring for the Imps after 15 minutes and Antonio Calderon added a second with 11 minutes of the match remaining.
Dates for the matches are still to be confirmed but Celtic are expected to be away for the first leg which will take place next midweek, with the return at Celtic Park a week later.
They will be the first competitive matches under new manager Brendan Rodgers.
Celtic defeated Olimpija Ljublana 2-1 in a friendly match in Slovenia on Wednesday thanks to a double from Leigh Griffiths.