Unión beat Aldosivi 1-2. Aldosivi controlled the ball — 61% possession — but had nothing to show for it. The winner had to work for it: 2 from 12 shots. G. Gonzalez scored 2 goals. Best on the pitch was E. Roldan, rated 8.2.

1. 0'
   ⚽Kick-off
   Torneo 2021
   ARG 4-1-4-1·4-4-2 ARG
   Coach: D. Villar · G. MunúaReferee: Y. Falcón📍 Estadio José María Minella
2. 1. First half
   2. 17'
      ARG
      Yellow card
      J. Nardoni
   3. 18'
      ARG
      Yellow card
      G. Gil Romero
   4. 30'
      ARG
      Own goalEmanuel Brítez
   5. 32'
      ARG
      GOOOAL!G. GonzalezAssist: E. Roldán
   6. 41'
      ARG
      Yellow card
      G. A. Lodico
3. 1. Second half
   2. 46'
      ARG
      Substitution
      ▲F. Milo▼G. Gil Romero
   3. 57'
      ARG
      Substitution
      ▲Gabriel Hauche▼Malcom Braida
   4. 60'
      ARG
      GOOOAL!G. GonzalezAssist: F. Vera
   5. 65'
      ARG
      Substitution
      ▲J. Iritier▼B. Guzmán
   6. 77'
      ARG
      Yellow card
      C. Corvalan
   7. 81'
      ARG
      Substitution
      ▲J. Garcia▼F. Márquez
   8. 84'
      ARG
      Substitution
      ▲R. Lucero▼E. Iniguez
   9. 85'
      ARG
      Substitution
      ▲L. Rinaldi▼G. A. Lodico
   10. 89'
       ARG
       Substitution
       ▲N. Peñailillo▼G. Gonzalez
   11. 90+3'
       ARG
       Yellow card
       Emanuel Brítez