Club Atlético Unión earned a narrow 1-0 home win against Aldosivi Mar del Plata in the Argentine Division 1 on February 23, 2026. The match was decided by a single goal scored in the first half, a moment of quality in an otherwise scrappy affair. Unión defended their lead with determination throughout the second half, absorbing pressure from an Aldosivi side desperate to find an equalizer. The visitors had a late chance cleared off the line, but Unión held on for a vital three points. This result helps Unión climb away from the lower reaches of the league table, while Aldosivi's search for points on the road continues after another narrow defeat.