It was 0-1 at half-time.
The last 10 meetings between the sides averaged 2.7 goals per game. The sides last met on 11 February 2017; the match ended O'Higgins 2-0 Unión Española. Before that they met on 17 December 2016, with the match ending Unión Española 1-1 O'Higgins.
Unión Española had 90% of the ball and took 2 shots, but O'Higgins were sharper on target, leading 5-4. Corners went to Unión Española, 2-1.