FNC Vikings 1 took place on November 15, 2025, at the GCC Celje in Celje, Slovenia. This event was unique as it combined an extensive amateur tournament with high-level professional superfights. In the professional main event, Croatian fighter Gabriel Pavlović secured a dominant victory over his former teammate, Serbian fighter Ognjen Kovačević. Pavlović won via submission (rear-naked choke) just 49 seconds into the first round. Both fighters were previously members of "Team Slo Rocky" during the Fight of Nations reality show, making this a highly personal encounter.

FNC Vikings 1: Gabriel Pavlović vs. Ognjen Kovačević