CÓRDOBA, Argentina (Interstat) — Visiting Union opened its Primera Nacional season with a 1-0 victory over Belgrano on Monday, defying pregame projections. The match, played at Estadio Julio César Villagra, was decided by a second-half goal following a sequence of substitutes.

Julián Palacios, who came off the bench, provided the crucial assist. The win gives Union a perfect start in the competition, while Belgrano begins with a loss. The result was an upset, as statistical models heavily favored the home side to win. The match featured five yellow cards.