Unión beat Arsenal de Sarandí 0-1. The winner had to work for it: 1 from 20 shots. Best on the pitch was Emanuel Brítez, rated 8.2.

1. 0'
   ⚽Kick-off
   Torneo 2021
   ARG 4-4-2·4-4-1-1 ARG
   Coach: D. Espínola · G. MunúaReferee: J. Baliño📍 Estadio Julio Humberto Grondona
2. 1. First half
   2. 22'
      ARG
      Yellow card
      E. Roldan
   3. 29'
      ARG
      Substitution
      ▲L. Suarez▼G. Suso
   4. 36'
      ARG
      Substitution
      ▲F. Martínez▼I. Gariglio
   5. 37'
      ARG
      Yellow card
      E. Méndez
3. 1. Second half
   2. 72'
      ARG
      Substitution
      ▲K. Zenon▼N. Cordero
   3. 74'
      ARG
      Yellow card
      L. Albertengo
   4. 77'
      ARG
      Substitution
      ▲B. Farioli▼A. Antilef
   5. 77'
      ARG
      Substitution
      ▲N. Castro▼F. Kruspzky
   6. 80'
      ARG
      Substitution
      ▲B. Blasi▼F. Vera
   7. 87'
      ARG
      Substitution
      ▲D. Juárez▼I. Machuca
   8. 90'
      ARG
      GOOOAL!Emanuel Brítez
   9. 90+1'
      ARG
      Yellow card
      Emanuel Brítez