Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Over the summer, forwards Ivan Schranz arrived from Slovak outfit Trnava,[2] and Uroš Đuranović signed from FK Dečić.

[7] In January 2018 Ivorian midfielder Mohamed Doumbia joined the club from Finnish second-tier side Ekenäs IF, signing a contract until the end of the 2018–19 season.

[8] Former Dukla striker Néstor Albiach joined the club on a short-term loan from Sparta Prague in February 2018.

In the second round, Dukla faced Bohemian Football League side Převýšov, the same opponent at the same stage in the previous season.