Reigning Extra.ie FAI Cup holders St. Patrick's Athletic were dumped out of the competition in the opening round this afternoon, going down 3-2 to a spirited Waterford side at Richmond Park.All the goals came in a topsy-turvy first half with both sides taking turns of having the lead.Pat's were celebrating last Thursday after their superb victory over NS Mura, but this was a real come down ahead of the UEFA Europa Conference League third round clash with CSKA Sofia next week.It was the hosts who found themselves behind in a truly breathless encounter when Wassim Aouachria turned home a brilliantly whipped Phoenix Patterson cross from the right, but the holders responded immediately as the lively Ronan Coughlan levelled from the spot sending Paul Martin the wrong way.The game was resembling something of a basketball game as both sides missed glorious chances to take the lead.Joe Redmond’s looped header clipped the outside of the post before Aouchria missed a one-on-one.The Saints got their noses in front with a half hour played when Dutch midfielder Thijs Timmermans delivered an inviting free kick from the left wing that found the head of Tom Grivosti at the back post, who powered his header home.But The Blues, sitting third weren’t in Inchicore to make up the numbers and responded immediately thanks to a mistake from Pat’s attacker Serge Atakayi, who’s tame back pass fell to the feet of big number nine Aouchria who made no mistake.As the frenetic half drew to a close it was the visitors who retook the lead thanks to a classy left footed curler from Junior Quitirna.Tim Clancy emptied the bench with a triple substitution at the break with the introduction of Chris Forrester and Adam O’Reilly in the middle of the park and