DEBRECEN, Hungary (Interstat) — Kisvarda II delivered a significant upset to open the NB I season Sunday, defeating Debrecen 1-0 at Nagyerdei Stadion.

The match’s lone goal came in the 55th minute from substitute Tonislav Yordanov. The assist was credited to defender György Komáromi. The result defied pregame projections that heavily favored the home side.

Debrecen, held scoreless at home, finished the match with 10 men after Dominik Kocsis received a red card in the 87th minute. The physical contest featured six yellow cards, including five in a tense final 20 minutes.

With the victory, Kisvarda II begins its league campaign with a win, while Debrecen starts with a loss.