San Lorenzo beat Arsenal de Sarandí 1-0. The winner had to work for it: 1 from 12 shots. Best on the pitch was M. Senesi, rated 8.5.

1. 0'
   ⚽Kick-off
   Superliga 2017-18
   ARG 4-1-4-1·4-1-3-2 ARG
   Coach: D. Aguirre · H. GrondonaReferee: Federico Jose Beligoy, Argentina📍 Estadio Pedro Bidegain
2. 1. First half
   2. 5'
      ARG
      Yellow card
      E. Papa
3. 1. Second half
   2. 53'
      ARG
      Substitution
      ▲F. Milo▼C. Corvalan
   3. 57'
      ARG
      Yellow card
      Facundo Quignon
   4. 58'
      ARG
      Substitution
      ▲R. Botta▼T. Conechny
   5. 64'
      ARG
      Yellow card
      M. Senesi
   6. 64'
      ARG
      Substitution
      ▲D. Drocco▼M. Curado
   7. 68'
      ARG
      Substitution
      ▲N. Barrios▼L. Romagnoli
   8. 75'
      ARG
      GOOOAL!M. SenesiAssist: A. Castro
   9. 77'
      ARG
      Substitution
      ▲Germán Berterame▼G. Gudiño
   10. 77'
       ARG
       Substitution
       ▲M. Rolón▼E. Papa
   11. 88'
       ARG
       Yellow card
       S. Velázquez
   12. 90'
       ARG
       Yellow card
       A. Castro