Carmarthen face an uphill struggle to keep their Uefa Cup hopes alive after losing to FC Copenhagen in a first leg, second qualifying round tie.
FC Copenhagen have European pedigree
Mark Dodds almost gave the visitors a surprise lead but was denied by keeper Jesper Christiansen's diving save.
Copenhagen improved after the break and Alvaro Dos Santos scored from close range after a flick-on by former Aston Villa striker Marcus Allback.
A powerful Michael Gravgaard header completed Copenhagen's win.
FC Copenhagen: Christiansen, Jacobsen, Svensson, Linderoth, Dos Santos (Moller 80), Silberbauer, Ijeh (Saarinen 90), Allback, Gravgaard, Bergdolmo, Van Heerden.
Subs Not Used: Raboczki, Tobiasen, Thomassen, Kvist, Brandrup.
Goals: Dos Santos 48, Gravgaard 54.
Carmarthen: Pennock, Richard Carter, Hardy, Lloyd, Kevin Evans, Giles, Rhodri Jones, Richard Kennedy (Walters 69), Smothers (Burke 76), Dodds, Daniel Thomas (Cotterall 57).
Subs Not Used: Tucker, James.
Booked: Richard Kennedy, Giles, Rhodri Jones.
Ref: Joseph Attard (Malta).