Boca Juniors beat Unión 0-1. Boca Juniors played with ten from minute 45.

1. 0'
   ⚽Kick-off
   Metropolitano 1978
   Referee: Oscar Antonio Veiró.Attendance: 7,369
2. 1. First half
   2. 45'
      ARG
      Red card
      SASaldaño
3. 1. Second half
   2. 70'
      ARG
      GOOOAL!CSCarlos V. Squeo