ST Gallen struck 11 minutes from time as Larne went down 2-1 to the Swiss side on Matchday 3 of the Conference League.
An own goal gave Larne the lead after just four minutes, before Lukas Gortler struck a leveller on 29 minutes.
It was a disciplined performance from Tiernan Lynch’s side, but St Gallen scored the winner on the break 11 minutes from time through Hugo Vandermersch.
Larne: Ferguson, Seary, Want (’90 Magee), Bolger, Todd, Ives, Sloan (’76 Graham), Thomson, McEneff (’76 Lusty) Gallagher (’82 Donnelly), Ryan (’82 Randall)
Subs: Besant, McKendry, O’Neill
St Gallen: Ati-Zigi, Geubbels (‘90+2), Akolo (’88 Cisse), Diaby, Gortler, Vallci, Toma (’75 Konietzke), Vandermersch, Okoroji, Stevanovic, Csoboth (’75 Witzig)
Subs: Watkowiak, Muslija, Yannick, Ruiz
Referee: Ishmael Barbara (Malta)
