The expansion was made specifically for the rematch, with the additional seats available in the South sector. This will allow Corinthians to reach one of the largest attendances in the history of the Neo Química Arena. The measure aims to boost local support for a decisive match, with the winner advancing directly to the semifinals and a new tie leading to a penalty shootout.
Corinthians will face Estudiantes after a 1-1 draw in the first leg, with the Brazilian team struggling with a poor run of form at home. The team has been eliminated five times in seven continental quarterfinals played at the Neo Química Arena, and will be looking to turn their fortunes around against Estudiantes. The Argentine team is also in a difficult situation, sitting 11th in the Group A with 10 points, three behind Union.